1. 13-1 MAVEN PFP ICDR, May 23 – 25, 2011 Particles and Fields Package Critical Design Review May 23 -25, 2011 GSE Timothy Quinn

2. 13-2 MAVEN PFP ICDR, May 23 – 25, 2011 Agenda Component Overview Data Viewing Development Status Anomaly Reporting and Tracking Test Setups

3. 13-3 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview The main components of the MAVEN GSE are: –MAVEN Instrument Simulator GSE (MISG) PFDPU/Instrument simulator –Ground Support Equipment Operating System (GSEOS) Telemetry and Command Control –Spacecraft Simulator GSE (SSG) –Additional Test Equipment (Power Supplies, Manipulator, Ion Gun, etc.)

4. 13-4 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - MISG MAVEN Instrument Simulator GSE (MISG) –ZestET1 off-the-shelf module High-speed Ethernet (TCP/IP Offload) engine (TOE) Configurable (Xilinx) FPGA – Instrument/PFDPU interfaces, along with the data flow and control are implemented in the FPGA, which interacts with the TOE to transfer data to/from the Host Computer –Base (Interface) Board connects to the Zest-ET1 FPGA Provides buffers and connectors that match the MAVEN-PFDPU flight configuration Houses the Actuator Control circuitry, controlled and monitored by the Zest-ET1 FPGA –Whenever possible, the MISG uses the actual flight design, assuring that the simulated interfaces match the flight hardware (The interface between the PFDPU and Instruments is a clocked serial bit-stream) –Communicates with GSEOS via TCP/IP

5. 13-5 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - MISG MAVEN Instrument Simulator GSE (MISG) –PFDPU test interface for instrument bench level testing Sends commands to and receives telemetry from the Instrument under test Provides an independent but synchronous “high-speed” (8.34 or 16.78 MHz) clock for those instruments that require it and a power- supply synch signal –Instrument test interface for PFDPU testing MISG receives commands from and sends telemetry to the PFDPU under test Simulated instruments include SEP, SWEA, SWIA, STATIC, MAG (1 and 2), and LPW instruments MISG telemetry production is impartial with respect to the instruments; each of the nine units simulated is personalized via its loaded pattern and operates synchronously to its own dedicated clock supplied by the PFDPU. (In practice, these clocks are 1.048MHz, derived from the PFDPU Master clock.)

6. 13-6 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - MISG Block Diagram

7. 13-7 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - MISG Front/Back Views

8. 13-8 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - MISG Physical Layout Diagram

9. 13-9 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - MISG

10. 13-10 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - GSEOS Off-the-Shelf software for Telemetry and Command (T&C) control Operation is managed through the use of configuration files and the Python scripting language Ingest the Command and Telemetry Definition Document (CTM), an excel spreadsheet, and convert it into all of the necessary GSEOS command and telemetry definition files, telemetry limit files, conversion formula definition files, and other GSEOS configuration files Supplies a scripting interface for closed loop instrument control

11. 13-11 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview – GSEOS Block Diagram

12. 13-12 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview – GSEOS Development Process: Review FPGA Specification

13. 13-13 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview – GSEOS Development Process: Generate Instrument CTM

14. 13-14 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview – GSEOS Development Process: Generate GSEOS Config Files from CTM

15. 13-15 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - GSEOS Development Process: Generate Common GSEOS Displays

16. 13-16 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - GSEOS Development Process: Generate GSEOS Instrument Specific Desktop and Displays

17. 13-17 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - GSEOS Development Process: Generate GSEOS Instrument Specific Desktop and Displays

18. 13-18 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - GSEOS Development Process: Generate Instrument Scripts

19. 13-19 MAVEN PFP ICDR, May 23 – 25, 2011 Component Overview - SSG Spacecraft Simulator GSE (SSG) –Hardware interface controlled by LabWindows (C) program –LabWindows program communicates with GSEOS over TCP/IP

20. 13-20 MAVEN PFP ICDR, May 23 – 25, 2011 Data Viewing GSEOS Real-Time Digital and Analog Housekeeping Displays –Single value raw/converted –Plots: Stripchart, bar graph, bitmap

21. 13-21 MAVEN PFP ICDR, May 23 – 25, 2011 Data Viewing Near Real-Time Displays –Matplotlib – Python plotting library called from GSEOS

22. 13-22 MAVEN PFP ICDR, May 23 – 25, 2011 Data Viewing Near Real-Time Displays –IDL GSEOS continuously saves data to files during test Data files accessed on shared disk by scientists/engineers

23. 13-23 MAVEN PFP ICDR, May 23 – 25, 2011 Development Status - MISG 9 of 12 systems delivered (some development areas sharing), remaining systems under development/troubleshooting Current FPGA version: 4.0 FPGA upgrades pending for LPW/MAG

24. 13-24 MAVEN PFP ICDR, May 23 – 25, 2011 Development Status - GSEOS Shared component set developed and tested Basic MISG T&C communications Basic SSG T&C communications Basic instrument specific component set developed and tested FPGA specifications used to create CTM CTM converted to GSEOS configuration files Basic displays/scripts built Active instrument testing since 12/2010 (LPW) Instrument script development underway Continued display development Telemetry limits and conversions GPIB test equipment control Power supplies complete Manipulator, ion gun, high voltage under development

25. 13-25 MAVEN PFP ICDR, May 23 – 25, 2011 Development Status - SSG Current software version 3.0 Implements: Time Update Commands PFDPU Command and Telemetry Processing Zone Alerts Timing Test Minimum command delay of 30ms still to be implemented

26. 13-26 MAVEN PFP ICDR, May 23 – 25, 2011 Anomaly Reporting and Tracking Currently reports emailed to developer Future: JIRA – Commercial Issue and Project Tracking Software Browser based bug reporting system Currently being installed on MAVEN server Current Anomalies GSEOS-MISG TCP connection dropout 3/2011 GSEOS-SSG telemetry sync error 5/2011

27. 13-27 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups The MAVEN GSE will support 3 types of test setups for the PFP before it’s shipped off to the spacecraft manufacturer for mission level I&T –Instrument Bench –PFDPU (DCB/FSW) Bench –PFP I&T

28. 13-28 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups SWEA Bench

29. 13-29 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups SWIA Bench

30. 13-30 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups SEPBench

31. 13-31 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups SEP Actuator Bench

32. 13-32 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups STATICBench

33. 13-33 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups DCBBench

34. 13-34 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups FSWBench

35. 13-35 MAVEN PFP ICDR, May 23 – 25, 2011 Test Setups PFP I&T (STATIC Engineering Model)