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ODU-CGA-CubeSat / sealion-mission-architecture

SeaLion Mission Architecture - ground station & flight software architecture for the joint CubeSat mission between Old Dominion University & Coast Guard Academy
https://odu-cga-cubesat.github.io/sealion-mission-architecture
MIT License
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Specify data structure for a "satellite health" packet #80

Closed capsulecorplab closed 3 years ago

capsulecorplab commented 3 years ago

As per https://github.com/ODU-CGA-CubeSat/flight-software/discussions/39#discussioncomment-1083429, we should specify a data structure for a satellite health data packet to be viewed by a ground station operator.

Robb1994 commented 3 years ago

The “satellite health” packet described below will eventually become the content in the TT&C specifications document, which we will need to developed.

Safehold mode telemetry format:

 IMU X  IMU Y  IMU Z  IMU Temperature  Battery voltage (reports percentage of total power life, if possible)  Battery current  Battery bus current  Battery current direction (Comment: Not sure what this is referring to or if we care to know?)  Battery temperature  Battery 12-V bus current (Comment: Correct number of bus and voltages listed?)  Battery 5-V bus current  Battery 3.3-V bus current  Transmitter current  Receiver current  Time stamp (bits: year, month, day, hour, minute, second)  Boot count  Boot time (last boot)  On-board computer (OBC) temperature  Processor temperature (Comment: Is this the same as the OBC or different? This question might be for Dr. Asundi)  Operational status: of equipment where each will indicate if a particular functional mode is either selected or deselected (Space Systems Engineering 14th Ed.). Comment: We may not be able to be determined this until the Mission CONOPS is completed  Redundancy status: reports each relevant relay or switch with a set of contacts to provide a status bit. (Space Systems Engineering 14th Ed.) Comment: We will have an RBF switch but unsure if we would care to know its status or not  Attitude Data: Satellite Angular rates (Space Systems Engineering 14th Ed.) Comment: Would the IMU data capture everything we would need for the ADS?  What else would we want to monitor for satellite health?

Reference: SwampSat - 10A1DD0501 Telemetry format (rev 0), Table 2.2 pg. 7 Folder path on Microsoft Teams: General> Design Document> Sample Design Document Textbook - Space Systems Engineering 14th Ed.