1 / 9

GSE & Science Data Processing

GSE & Science Data Processing. Stewart Harris. Outline. Description of instrument data products Mission data flow Ground Support Equipment. ISUAL Source Packet Types. Utility Packets Types Housekeeping Time Instrument status Voltage/Current/Temp HV Settings State Group Dump

cid
Download Presentation

GSE & Science Data Processing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GSE & Science Data Processing Stewart Harris

  2. Outline • Description of instrument data products • Mission data flow • Ground Support Equipment NCKU UCB Tohoku GSE & Science Data S. Harris

  3. ISUAL Source Packet Types • Utility Packets • Types • Housekeeping • Time • Instrument status • Voltage/Current/Temp • HV Settings • State Group Dump • NVRAM Dump • Memory Dump • Command Echo • Idle • Science Data Packets • Types • Sprite images • Aurora images • Sprite AP data • Aurora AP data • Sprite SP data • Aurora SP data • All time tagged • All parameterized • Compressed or Uncompressed data packets are supported NCKU UCB Tohoku GSE & Science Data S. Harris

  4. ISUAL Data Encapsulation Data Products (either Science data or Utility data) CCSDS Source Packets PVCF 64 Mbit blocks Spacecraft NCKU UCB Tohoku GSE & Science Data S. Harris

  5. Ground Support Equipment (GSE) • Spacecraft (S/C) simulator • Simulates S/C interface • Science data telemetry (source packets encoded as PVCFs) • Status data telemetry (low speed SOH data encoded as PVCFs) • Command channel • Supports same data protocol as used during flight • CCSDS • PVCF • Command scripting language (STOL?) • Protocols used during flight and during testing should be identical • Scripting language should also be identical NCKU UCB Tohoku GSE & Science Data S. Harris

  6. Mission Data Flow - Proposed NCKU UCB Tohoku GSE & Science Data S. Harris

  7. Front End Data System • Receives S/C telemetry, during flight • From PVCF stream, reassembles ISUAL source packets, sends to ISUAL data server • Accepts Command scripts (STOL?), uplinks commands to S/C NCKU UCB Tohoku GSE & Science Data S. Harris

  8. Spacecraft Simulator • Accepts PVCF from ISUAL (on ground) • Accepts Command scripts (STOL?) and passes commands to ISUAL (on ground) • From PVCF stream, reassembles ISUAL source packets, sends them to ISUAL data server • Provides real-time decoding of “status” channel (low-speed SOH) NCKU UCB Tohoku GSE & Science Data S. Harris

  9. ISUAL Data Server • Receives CCSDS source packets via socket connection • Source can be GSE or Front End Data System • Writes source packet archive • Builds science products; saves in archive • Retrieves data from either archive • Runs web server, supports a group of data viewers and calibration programs (Java?) • Runs socket server to provide data to user applications running remotely (e.g. Java/C++/IDL) NCKU UCB Tohoku GSE & Science Data S. Harris

More Related