Date/Time
Date(s) - 01/09/2015
10:00 AM - 11:00 AM
Category(ies)
ACE Planning Meeting 9/1/15
Marty, Kerry, Samantha
Atmospheric Coupling Explorer
Heliophysics Explorer class opportunity – AO next year (no earlier than 3rd quarter), draft AO in January
Pegasus (Athena new option?) (~70 kg payload is max)
s/c that fits in LV
$125M + launch vehicle budget cap
Goal:
Make decision whether to go forward with proposal in January, with enough time to gather team.
Can we include 2 instruments in budget and s/c and L/V?
If doesn’t fit – size for Solar terrestrial probes, competed in 2017
Or…SDL instrument (MASTER) – alone for mission of opportunity
Deliverables (TBR):
- Feasible spacecraft concept (drawing, subsystem descriptions, high level MEL)
- Mission ops outline (diagram/graphic)
- Rough WBS/schedule?
- Parametric cost
- Top risks list
Approach:
Look at potential for Surrey or other commercial s/c first, but design as needed for smallest/lightest. Still want the concept completed if it doesn’t fit in Pegasus.
MASTER is main instrument – SABER next gen. Exact same for optics, electronics/thermal updated (smaller and lighter), no baffle and consequential supports because optics can handle off-pointing
~35kg
APL instrument is potential 2nd – Terahertz Limb Sounder (TLS) instrument, being built at JPL. No drawings.
What do we need to know from JPL?
Mass, power, volume, thermal interface, data rate
Cryocooler on master instrument; another needed for TLS? Or thermal link?
Precessing orbit
S/C has an attitude requirement to keep mirror scanning at a particular rate
Schedule:
3 day week of 9/21 – Tuesday-Thursday or Wednesday-Friday
Team:
ACE (customer) team
Marty – PI
Paul – project engineer
SDL – will send 2 or 3 people for MASTER
APL – Sam (maybe others) to represent TLS
Sam to get contact so we can call into JPL for questions he can’t answer
GATS – Larry Gordley (long time collaborator), for algorithms and s/c accommodations
EDS Study Team
Facilitator – Vip or Samantha
SIE
SEDoc – Kerry or Matt (may need both to fully cover)
Mechanical/mechanisms
Orbital/ADCS
Structural
Thermal
Electrical
Software
Ground
Cost
Pre-work Actions:
Paul/Marty – Put instrument drawings on EDS folder: (2015-09)_ACE
Sam (APL) – get contact so we can call into JPL for questions he can’t answer
Marty – For TLS through APL, Get Mass, power, volume, thermal interface, data rate