Meeting w/ Max King from MDA

Agenda

• Introductions
• Feedback on TVAC test plan
• MDA’s TVAC cost structure
• Questions:
  • Verify that the TVAC chamber can reach the temperatures/pressure required.
  • Can you provide us with thermocouples? If so, how many?
  • Can you provide us with the relevant interface cables?
  • At the end of the meeting, show what we would do in unit-level TVAC, and ask his professional opinion on if we should do it.
  • How are we mounting the satellite?
  • Does MDA require bakeout?

Time-permitting:

• MDA’s CAD review process

Notes

• Photos were provided during HERON’s TVAC testing campaign
• MDA is moving buildings
• Assume we are using the same TVAC chamber for this convo
• Setup diagram looks good
• TVAC chamber interface in pics is one we could use, but there are alternatives
  • Will this work?
  • Elec thinks this isn’t too bad to interface
    • GSE will need to be built ourselves
  • Ground Support Equipment
  • There’s alternatives, off the shelf
  • Most user friendly is D-SUB feedthrough
  • Dylans group came in to see the lab, was very useful
  • Can figure out a field trip
• UTAT will provide all equipment, except for thermal couples
  • Sounds good, MDA can provide thermal couples
  • Built-in thermal couple readout
  • All readings will be time tagged
• Don’t want to gum up TVAC with
• Might need to do bakeout
• It would help to have a list of all materials in spacecraft
  • Materials & process people can review it
  • Can maybe not do bakeout, but materials would need to be reviewed
  • Don’t worry if you can’t get the exact polymer type for the wires
  • Will ask for more info if needed
  • Anything metallic is usually fine
• Can give advice on thermal couple placement
  • System can handle up to 24 couples
  • Some are used for GSE
  • Sat usually has 16 (overkill)
  • Important to have primes and backups
• Temperatures do not look like a problem