1 Space Test Program - Houston 4 Payload Overview POIWG, 26 Jul 2012

2 STP-H4 Mission Overview RAM NADIR STP-H4 ELC-1 STP-H4 payload complement includes 5 DoD experiments and 3 NASA experiments Launch on HTV-4 in June 2013 Operate 1 year on ISS ELC-1 FRAM Site 3 (ExPA Site 2) Disposal on SpaceX-6 in August 2014 ELC-1

3 STP-H4 Payload Layout JMU2 ExPA ATT SpaceCube CIB ISE 2.0 FireStation Gamma Ray Box ISE 2.0 FireStation Antenna Assembly ISE 2.0 Camera Assembly GLADIS ISE 2.0 SpaceCube 2.0 Box STP-H4 Base Plate STP-H4 Tower Ram ISS Port Zenith Nadir ISS Port SWATS MARS (Zenith) MARS iMESA-R Wake ISE 2.0 EHD Thermal Plate

4 STP-H4 payload complement includes 5 DoD and 3 NASA experiments –SWATS – Small Wind And Temperature Spectrometer (NRL) SWATS acquires simultaneous co-located, in- situ measurements of atmospheric density, composition, temperature and winds –iMESA-R (Integrated Miniaturized Electrostatic Analyzer-Reflight, USAFA) is integrated into SWATS, enabling synergistic co-located density and temperature measurements between the instruments –GLADIS – Global Awareness Data- Exfiltration International Satellite Constellation Concept (NRL) GLADIS will demonstrate co-channel interference mitigation (antenna design) by receiving the Automatic Identification System (AIS) vessel tracking signal while simultaneously providing two way communications to widely distributed Maritime Domain Awareness sensor arrays STP-H4 Experiments SWATS & iMESA-R GLADIS

5 STP-H4 Experiments Cont. –MARS – Miniature Array of Radiation Sensors (NRL) MARS consists of an array of sensors that monitor the total dose radiation on the host spacecraft for 3-D radiation modeling NASA JSC is a co-investigator on MARS, and the MARS experiment includes NASA JSC provided radiation shielding on some of the MARS sensors (zenith side) –ATT – Active Thermal Tile (AFRL) ATT is a quick-insert thermal control device that is modular, reconfigurable, and fully scalable to a wide array of component sizes MARS Remote Array (Zenith Side) ATT

6 STP-H4 Experiments Cont. –ISE 2.0 – ISS SpaceCube Experiment 2.0 (NASA GSFC) SpaceCube 2.0: A small, powerful data processing module with multiple HD cameras to demonstrate new algorithms, including “Radiation Hardened By Software” algorithms and Earth “event detection” algorithms EHD: A thermal plate prototype to demonstrate Electro Hydro-Dynamic (EHD) pumping of liquids in micro- channels for advanced thermal control FireStation: Measures the optical lightning flash, the radio signatures of lightning, and the gamma rays and electrons produced in terrestrial gamma ray flashes ISE 2.0 Camera Box FireStation Antenna Assembly FireStation Gamma Ray Detector Box EHD Thermal Plate SpaceCube 2.0

7 STP-H4 Avionics Communication SpaceCube Communications Interface Box (CIB) Provides command and data interface between experiments and ISS Power JMU2 (Jenkins Memorial Unit) 28Vdc, 50Vdc, and 120Vdc Power interface between experiments and HTV / ISS CIB JMU2

8 Payload Status as of July 13 JMU2 Vibration Adapter Plate ATT SpaceCube CIB ISE 2.0 FireStation Gamma Ray Box ISE 2.0 FireStation Antenna Assembly ISE 2.0 Camera Assembly GLADIS ISE 2.0 SpaceCube 2.0 Box STP-H4 Base Plate STP-H4 Tower SWATS MARS Remote Array MARS iMESA-R ISE 2.0 EHD Thermal Plate

9 STP-H4 Mission Phases 1. Launch on HTV-4 2. HTV Free Fly 3. HTV Berth to ISS 4. SSRMS Transfer of HTV-EP from HTV to JEM-EF 5. HTV-EP Temp Stow On JEM-EF 6. SPDM Removal of STP-H4 from HTV-EP 7. SPDM Installation of STP-H4 on ELC-1 8. STP-H4 Operations on ELC-1 9. Disposal on SpaceX-6 Acronyms: ELC: Express Logistics CarrierJEM-EF: Japanese Experiment Module - Exposed Facility HTV: H-II Transfer VehicleSPDM: Special Purpose Dexterous Manipulator HTV-EP: HTV Exposed PalletSSRMS: Space Station Remote Manipulator System

10 STP-H4 Launch on HTV-4 UTA MBSU STP-H4 HTV-EP (Exposed Pallet) (Main Bus Switching Unit) (Utility Transfer Assembly) Launch on HTV-4 in June 2013 Launch from Tanegashima Space Center (TNSC), Japan

11 Operations At least one year of Operations Command Window M-F Initial Checkout Period 8 hours per day Reduced to 4 hours per day after initial checkout period Telescience Resource Kit (TReK) software used for Command and Data Five ground Payload Operations Centers Naval Research Lab Goddard Space Flight Center Air Force Research Lab Johnson Space Center Blossom Point Tracking Facility Internet Voice Distribution System (IVoDS) used to communicate with POIC Cadre

12 Payload BOL & EOL Surveys Overall Image of Ram, Wake, Nadir and Zenith sides Ram Nadir Wake Zenith