Preliminary Design Review

Preliminary Design Review
Cajun Probe Preliminary Design Review University of Louisiana at Lafayette Mark Roberts

Table of Contents Mission Overview Narrative Expectations Cosmic Rays
Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port(s) Systems Layout Functional Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temperature Sensors GPS Test Plans Flight Batteries Parts List Flight Hardware Non-flight hardware & Sensors Canister Compliance Logistics of Shared Canister Management Team Timeline Code Flow Chart Code Explanation Memory Budget Sensor Specifications

Mission Overview Objectives
Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Objectives Design and implement a robust, compact payload to latter be integrated into a probe. Develop improved Geiger Counter circuit. Testing of payload’s durability and performance under space conditions. Obtain and analyze data for a baseline of future experiments.

Expanding on RockOn 2008 GPS More Temperature Sensors
Larger Memory Improved Geiger Counter Circuit AVR Board (RockOn 2008) Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Previous experiments have proven inconclusive with Geiger Counter circuit. Therefore, a more robust circuit and improved Geiger-Muller tube is necessary.

Experiment Expectations
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Cosmic Radiation ULL expects to quantify the cosmic radiation and analyze it’s relation to temperature(s) and pressure. Further Development of Probe Again, this phase of the project is just a step towards ULL’s ultimate goal which is to develop a extremely robust probe to be launched into thunderstorms. Finally have an Improved Geiger Counter Circuit that is robust enough to operate efficiently and properly in harsh environments.

Cosmic Rays (CRs) Discovered by Victor Hess in 1912 Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Electrically charged particles that bombard Earth where the flux of the CRs will be different at different latitudes & altitudes. CRs led to the discovery of the first muon and pion, however the main focus of cosmic ray research is where they originate and how they are accelerated to such high velocities—their role in the dynamics of the Galaxy. It is believed that CRs originate from outside our galaxy from active galactic nuclei, quasars, or gamma ray bursts. Another belief is that galactic CR’s derive their energy from supernova explosions and evidence exists to suggest that CR’s are accelerated as the shock waves from these explosions, traveling through interstellar gas where the energy contributed to the Galaxy by the CRs is about that contained in galactic magnetic fields and in the thermal energy of the gas that it passes through.

When high energy cosmic rays collide with the atoms in Earth’s atmosphere a shower of secondary particles are produced, correspondingly the frequency of particles reaching Earth’s surface is directly related to the energy of the cosmic ray(s) which can be measured with a Geiger counter.

Related Research Mission Overview Narrative Expectations Cosmic Rays
Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline

T-MAT H°600 film showing cosmic ray tracks
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline High Energy Particles (E > 250 MeV) Low Energy Particles (E ≤ 250 MeV) Measured fluence of high & low energy protons & electrons OSL Badges

Mission Requirements Requirement Method Status RBF Pin Design/Test GO
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Requirement Method Status RBF Pin Design/Test GO Volume Constraints 1/3 Weight Constraints ≈ 2 Kg Shock Constraints GO Thermodynamic Protection Electronic Noise Protection Mission Objectives GO

Mission Success Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Success for this mission is dependent on the performance of the Geiger counter. That is, an accurate measure of the total flux of the cosmic rays with respect to altitude. Accurate Geiger counter data consists of: Measuring Beta particles above 50 KeV. Measuring Gamma particles above 5 KeV. With accurate Geiger data we will be able to reproduce similar curve

Benefits Comparison of data and efficiency with previous cosmic
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Comparison of data and efficiency with previous cosmic ray measurements made with film and OSL badges. UL Lafayette having an optimized Geiger circuit that will be integrated into future experiments and into our own High Power Rockets. The optimized Geiger circuit will be developed into a kit and function as an introduction to Balloon & Sounding Rocket payloads to undergraduates and possibly used as an outreach program as well.

Comparison of data and efficiency with previous cosmic ray
Expected Results Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Relevance Comparison of data and efficiency with previous cosmic ray measurements made with film and OSL badges. UL Lafayette having an optimized Geiger circuit will be integrated into a sub-system of a Probe that will be launch over and into thunderstorms in hopes to see if Thunderstorms emit gamma radiation and For the probe to collect vertical slices of the thunderstorm so it can be properly modeled and analyzed in hopes to further understand this phenomena and to reduce error in modeling.

Subsystems Sensor Sub System Power Sub System
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Sensor Sub System Temperature Sensor Pressure Sensor X & Y Axis Accelerometers Z Axis Accelerometers Geiger Counter Interface GPS Temperature PCB Power Sub System Activation Power Regulation Command and Data Handling In-System Serial Programming (ISP) Data Retrieval

Subsystems Layout C&DH subsystem Sensor(s) subsystem C&DH subsystem
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline C&DH subsystem Sensor(s) subsystem C&DH subsystem C&DH Sensor(s) subsystem Power subsystem

Power Subsystem Payload will only activate if and only if the following conditions have been satisfied: RBF Pin has been shorted. A vertical acceleration has engaged the G-switch for a finite amount of time. Only at this time will the payload become active and consume current. Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline The power subsystem will supply 3.3 V, 5 V, and 9 V to respective components on the micro controller board. These specific voltages can be traced in the provided schematic of the micro controller board and will also be broken down in the following subsystems. All subsystems will operate with the ambient temperature inside the rocket.

Dual X,Y Accelerometers
Sensor Subsystem Sensor Voltage (V) Z Accelerometers 5 Temperature Pressure Dual X,Y Accelerometers Temperature PCB 3.3 GPS Geiger Counter 9 Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline The requirements for the sensor subsystem is rather self explanatory via the title of each sensor. The sensors are sampled by the MCU’s timer which is set to a finite amount of time; the sampling time must be greater then the dead time of the Geiger Counter otherwise sampling of the Geiger counter will continually return 0 because the counter is unable to function.

Command & Data Handling Subsystem (C&DH)
Item Voltage (V) Flash memory 3.3 Translator Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline The C&DH subsystem consists of: 16 Mb flash memory Will be updated to 32 Mb. A level translator for data transfer The micro controller ATmega32 (which later might be switched out for the ATmega324P) In-System Serial Programming (ISP) Data Retrieval Memory (50ms samples) Time span of Memory Minutes Hours 16 Mb 41.665 .69444 32 Mb 1.3888

Existing Atmospheric Port Payload Access Section
Special Requirements Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Existing Atmospheric Port Payload Access Section PL1 RockOn RSPC Section RSPC Section Motor Adapter Nose Cone Existing Optical Port PL2 PL3 PL4 PL5 PL6 PL7 PL8 PL9 Customer Manifest: Team 1: RockOn 2010 Team 2: RockOn 2010 Team 3: RockOn 2010 Team 4: RockOn 2010/RSPC Team 5: RSPC Team 6: RSPC Team 7: RSPC Team 8: RSPC Team 9: RSPC Existing Ports: 1.) One optical and one pressure port in aft payload section. 2.) Four optical ports for each can in forward payload section. 3.) Three static ports for forward payload section. 4.) One dynamic (RAM) port for forward section.

Special Requirements Atmospheric Port(s)
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Atmospheric Port(s) Please specify more about the drop down line to the atmospheric/static ports I am still unsure of exactly how this is suppose to work.

Systems Layout Mission Overview Narrative Expectations Cosmic Rays
Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline

Functional Block Diagram
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline

Schematic of RockOn 2008 AVR Board

Geiger Counter Circuit
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Tube Specifications Gas Filling Ne + Halogen Effective Diameter 1.13 in Cathode Material 446 Stainless Material Mica Max Length (inch) 7 Operating Voltage 500 V Max Diameter (inch) 1.5 Min. Dead Time 30 ms Operating Temp (°C) -40 Gamma Sensitivity Co60 (CPS/MR/HR) 100 Areal Density (mG/cm2) Weights (grams) 200 Geiger-Muller Tube

Corona Discharge Coronal discharge occurs in low pressure environments with high voltages present. The air around a high potential will become a conductor and emit a bluish glow (plasma). This plasma will cause adverse effects for the components as well as neighboring parts. Corona is a process by which a current develops from an electrode with a high potential in a neutral fluid, air for instance, by ionizing that fluid so as to create a plasma around the electrode. The ions generated pass charge to nearby areas of lower potential, or recombine to form neutral gas molecules. In low pressure situations air is no longer a dielectric but a conductor thus allowing an electrical discharge or arching to occur. Therefore a conformal coating to the board containing the high voltages is needed to prevent coronal discharge and will be applied to the Geiger counter circuit to prevent arching. Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline

Top View of payload Mission Overview Narrative Expectations
Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline

Temperature Sensor(s)
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Small array of Temperature sensors serially connected and mounted in various spaces with either tape or adhesive One on skin of rocket One on Canister One near or on mica window

GPS Receiver VENUS634FLPx
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline VENUS634FLPx 51 Channel Acquisition and 14 channel tracking 10Hz max update rate Hot start 1 second Cold start 29 seconds Supports active or passive antenna Data logging with external SPI serial Flash 10 mm x 10 mm x 1.1 mm footprint

Code Flow Chart Payload States: Safe Armed & Idle Active
Initialize System Check Connections to Board Check Memory Protection Latch Set Timer Start Timer Sample Sensors Flush to Memory Check Latch Update LED Code Flow Chart Code Flow assumes: G-Switch has been triggered RBF pin has been shorten Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Payload States: Safe Armed & Idle Active Returns True Returns Fail

Code Flow Explanation The program main initializes the system by initializing the included libraries and interrupts. Next the ISMP is checked board connections to either program or retrieve data. The memory write protection latch is checked. MCU’s timer is set up to sample the sensors for a specified time. MCU’s timer is engaged. The sensors are sampled at a specified interval set by timer Converting the Analog signal to a Digital Signal. The sensor data is then written to memory. The Z-accelerometer latch is checked to confirm activation. If activation returns True, then memory write protection latch is closed. If the Z accelerometer latch detects a false detection then the loop will terminate, the memory write protection latch will remain open and system will go IDLE. LED is updated and gives visual cue of activation or not. Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline These actions are then repeated if activation is detected.

Memory Budget Memory (50ms samples) Time span of Memory Minutes Hours
16 Mb 41.665 .69444 32 Mb 1.3888 Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Data will be stored on the onboard flash memory which is located on the MCU board. Data is collected from the sensors via the ADC channels of the MCU and then processed through the level translator and sent to flash memory. The sample function is a strut which collects data from each sensor when called in the MAIN in conjunction with the MCU timer, the function samples data. The MAIN then enters into a loop where it continuously flushes the sample strut to memory after the specified sample time; i.e. every 50 ms the sensors are sampled and flushed to memory.

ADXL103/ADXL203 Stress Ratings Parameter
Sensor Specifications Single-Axis, High-g MEMS Accelerometer: ADXL78 Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Parameter Rating Acceleration (Any Axis, Unpowered) 4000 g Acceleration (Any Axis, Powered) VS −0.3 V to +7.0 V All Other Pins (COM − 0.3 V) to (VS V) Output Short-Circuit Duration (Any Pin to Common) Indefinite Operating Temperature Range −65°C to +150°C Storage Temperature Single/Dual Axis Accelerometer: ADXL103/ADXL203 ADXL103/ADXL203 Stress Ratings Parameter Rating Acceleration (Any Axis, Unpowered) 3,500 g Acceleration (Any Axis, Powered) Drop Test (Concrete Surface) 1.2 m VS –0.3 V to +7.0 V All Other Pins (COM – 0.3 V) to (VS V) Output Short-Circuit Duration (Any Pin to Common) Indefinite Operating Temperature Range –55°C to +125°C Storage Temperature –65°C to +150°C

ENVIRONMENTAL SPECIFICATIONS
Sensor Specifications Dual-Axis, High-g: ADXL278 Parameter Rating Acceleration (Any Axis, Unpowered) 4,000 g Acceleration (Any Axis, Powered) VS −0.3 V to +7.0 V All Other Pins (COM − 0.3 V) to (VS V) Output Short-Circuit Duration (Any Pin to Common) Indefinite Operating Temperature Range −65°C to +150°C Storage Temperature Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline MAXIMUM RATINGS Supply Voltage (Vs) 4.75V to 5.25Vdc Maximum Supply Voltage 6.50 Vdc (max.) Consumption Current 6 mA (typ) Output Current - sink 2 mA (max.) Output Current - source Lead Temperature (2-4 Sec.) 250°C Pressure sensor ASDX series ENVIRONMENTAL SPECIFICATIONS Temperature Ranges Compensated 0°C to + 85°C Vibration: 10G at Hz Operating -20°C to +105°C Shock: 50G for 11 ms Storage -40°C to +125°C Life: 1 Million cycles minimum

Absolute Maximum Ratings Absolute Maximum Ratings
Sensor Specifications Absolute Maximum Ratings Supply Voltage +12V to −0.2V Output Voltage (+VS + 0.6V) to −1.0V Output Current 10 mA Storage Temperature −65°C to +150°C TJMAX, Maximum Junction Temperature 150°C Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline LM50 SOT-23 Temperature Sensor Operating Ratings Specified Temperature Range: TMIN to TMAX LM50C −40°C to +125°C LM50B −25°C to +100°C Operating Temperature −40°C to +150°C Supply Voltage Range (+VS) +4.5V to +10V Absolute Maximum Ratings Temperature under Bias 55°C to +125°C Storage Temperature 65°C to +150°C All Input Voltages (including NC Pins) with Respect to Ground -0.6V to +4.1V All Output Voltages with Respect to Ground -0.6V to VCC + 0.5V 16-megabit data flash memory

Sensor Specifications
LM mA Low Dropout Regulator Absolute Maximum Ratings Input Voltage Continuous 26V Transient (t ≤ 100 ms) 60V Internal Power Dissipation Internally Limited Maximum Junction Temperature 150°C Storage Temperature Range −65°C to +150°C Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Operating Conditions Temperature Range LM2937ET, LM2937ES −40°C ≤ TJ ≤125°C LM2937IMP −40°C ≤ TJ ≤85°C Maximum Input Votlage 26V Maxim Low-Voltage Level translator Absolute Maximum Ratings (All voltages referenced to GND.) Vcc -0.3V to +6V I/O Vcc -0.3V to (VCC + 0.3V) I/O VL -0.3V to (VL + 0.3V) Operating Temperature Range -40°C to +85°C Storage Temperature Range -65°C to +150°C Lead Temperature (soldering,10s) +300°C

MAXIMUM RATINGS NPN Transistor: MPS2222A Rating Symbol Value Unit Collector-Emitter Voltage MPS2222 MPS2222A VCEO 30 40 Vdc Collector-Base Voltage VCBO 60 75 Collector Current-Continuous IC 600 mAdc Operating and Storage Junction Temperature Range Tj, Tstg -55 to +150 °C Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Ultra Fast Diode: 1N4454 Symbol Parameter Value Units WIV Working Inverse Voltage 50 V IO Average Rectified Current 200 mA IF DC Forward Current 400 if Recurrent Peak Forward Current 600 If(surge) Peak Forward Surge Current Pulse width = 1.0 second Pulse width = 1.0 ms 1.0 4.0 A Tstg Storage Temperature Range -65 to +200 °C TJ Operating Junction Temperature 175

IRF9Z14PbF PNP Transistor Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Absolute Maximum Ratings Parameter Max Units Tc = 25°C Continuous Drain Current, -10V -6.7 A Tc = 100°C -4.7 IDM Pulsed Drain Current -27 TC = 25°C Power Dissipation 43 W Linear Derating Factor 0.29 W/°C VGS Gate-Source Voltage ±20 V EAS Single Pulse Avalanche Energy 140 mJ IAR Avalanche Current EAR Repetitive Avalanche Energy 4.3 Dv/dt Peak Diode Recovery dv/dt -4.5 V/ns TJ TSTG Operating Junction & Storage Temperature Range -55 to +175 °C Soldering Temperature (10s) 300 (1.6mm from case) Mounting Torque, 6-32 or M3 screw 10 lbf·in (1.1 N·m)

Test Plans Testing Protocol before Delivery
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Payload will be tested in following ways Cold/Heat Test Vacuum Test Shock Test Life Test Cold/Vacuum Test Shock/Stress Testing

Test Plans Testing pre-flight at delivery
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline The payload will be ready to go under any environmental testing simulating temperatures from -60°C to 100°C. Also the payload will be ready for any shock testing that Wallops may want to perform on their shaker tables. The payload will also be able to undergo pressure (vacuum) testing. The flight batteries will not be used during any/all testing. Flight batteries are only to be installed during final canister integration.

Flight Batteries Mission Overview Narrative Expectations Cosmic Rays
Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline

Parts List Flight Hardware PCB (3 Parts) In-House Advanced Circuits 1
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline PCB (3 Parts) In-House Advanced Circuits 1 4PCB.com $30.00 AVR Microcontroller ATMega32-16PU Atmel Digikey $9.00 40 pin DIP socket for AVR CP 3M Electronics $0.50 DataFlash Memory AT26DF161A-SU Arrow $1.99 SPI Level Shifter MAX3392EEUD+ Maxim Maxim-IC $1.90 PNP Power transistor IRF9Z14PBF Fairchild Semiconductor $1.60 NPN Transistor MPS2222ARLRAG ON Semiconductor $0.18 5V Voltage Regulator LM2937IMP-5.0CT-ND Texas Instruments $2.00 3.3V Voltage Regulator LM2937IMP-3.3CT-ND Diode (general purpose logic, 200mA) 1N4454CT-ND 3 $0.06 1kOhm resistor (carbon film, 5%, .25W) 1.0KQBK-ND $0.05 3.3 kOhm resistor (carbon film, 5%, .25W) 3.3KQBK-ND 2 $0.11 10 kOhm resistor (carbon film, 5%, .25W) 10KQBK-ND 7 $0.38 100 kOhm resistor (carbon film, 5%, .25W) 100KQBK-ND .1uF capacitor (ceramic) BC1101CT-ND 9 $0.07 $0.63 10uF capacitor (ceramic) {C1} ND $0.35 LED (Red) ND $0.40 $0.80 LED (Green) HLMP-4740 2 pin header {Ind. Pins} TSW T-S Samtec 10 $0.08 2 pin plastic berg connector housing JB Saunders $0.20 $0.60 3 pin header {Ind. Pins} TSW T-S $0.12 3 pin plastic berg connector housing 4 pin header (1x4) {Ind. Pins} TSW T-S $0.15 4 pin plastic berg connector housing 1 pin metal berg connector 20 $0.10 6 pin header (2x3, right angle) TSW T-D-RA $0.30 G-switch SW156-ND $1.50 Battery Connector (1 from Geiger kit) BS6I-ND Flight wire, Teflon stranded, 22 gauge TF BulkWire bulkwire.com $2.80

Parts List Non-Flight Hardware Sensors Total Cost: $243.60 Item
Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Item Part Number Manufacturer Quantity Vendor Price (Each) Price In-System Programmer ATAVRISP2-ND Atmel 1 Digikey $37.00 6 pin cable IDSD-03-D T Samtec $5.00 6 pin header (2x3) TSW T-D-RA $0.30 RS-232 Level Shifter MAX233CPP+G36-ND Maxim $8.00 20 Pin DIP Socket for Level Shifter 3M5465-ND $0.21 $0.25 DB9 Connector (Female) A35109-ND $1.10 10kOhm resistor (carbon film, 5%, .25W) $0.05 USB to Serial Adapter USA-19HS KeySpan techforless.com $25.00 1uF capacitor (16 V) {Data Board} ND $0.20 LED (Red) LED #16 JB Saunders $0.40 Sensors Item Part Number Manufacturer Quantity Vendor Price (Each) Price 1-Axis Low-Range Accelerometer ADXL103CE Analog Devices 1 Digikey $16.00 2-Axis Low-Range Accelerometer ADXL203CE $23.00 1-Axis High-Range Accelerometer AD22279-A-R2 $12.00 2-Axis High-Range Accelerometer AD22284-A-R2 Temperature Sensor LM50CIM3 N. Semiconductor $1.00 Pressure Sensor ASDX015A24R Honeywell $25.00 100uF capacitors {Geiger Counter} 107+20M 2 JB Saunders $5.00 $10.00 1uF 50V capacitor {Geiger Counter} ND $0.60 Total Cost: $243.60

RBF Pin has been shorted.
Canister Compliance Type of Restriction Restriction Status Mass Allotment ≈ 2 Kg Volume allotment 1/3 GO Payload's center of gravity 1''x 1''x 1'' envelope Wallops No-Volt Compliance GO Structure Mounts Sharing Yes Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline Payload will only activate if and only if the following conditions have been satisfied: RBF Pin has been shorted. A vertical acceleration has engaged the G-switch for a finite amount of time. Only at this time will the payload become active and consume current.

Payload consists of a vibration isolation (damping) mechanism.
Logistics of Shared Canister UL Lafayette Mass Allotment ≈ 2 Kg Port requested Volume allotment 1/3 West Virginia University .997/2.04 Kg Optical Port requested 1/4 Temple University Mass allotment 1.13 Kg none < 1/2 Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline UL Lafayette Expansion of RockOn 2008 with improved Geiger Counter, GPS, and other modifications. West Virginia Multi-Instrumental payload measuring Ionosphere density, the magnetic field, and ambient temperature. Temple Payload consists of a vibration isolation (damping) mechanism.

Team Management Mission Overview Narrative Expectations Cosmic Rays
Andy Hollerman superivsor Graduate Student Mark Roberts Compact Payload Design Build Integrate Test Programming Implementation Documentation Presentations Team Management Mission Overview Narrative Expectations Cosmic Rays Related Research Mission Requirements Mission Success Mission Benefits Expected Results Subsystems Layout Power Sensor C&DH Special Requirements Atmospheric Port Systems Layout Block Diagram Schematic Geiger Circuit Corona Discharge Top View Temp Sensors GPS Code Flow Chart Code Explanation Memory Budget Specifications Test Plans Flight Batteries Parts List Flight Hardware Non-Flight/Sensors Canister Compliance Shared Canister Management Team Timeline

Timeline for project completion

Preliminary Design Review

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Preliminary Design Review

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