Status of the Project

Project Status: F. Felici

See handout -- annex 3

• M-CDR conclusion: need to understand spacecraft/experiment/operations interactions. Study by Culhane taskforce.
• EM tests near successful completion
• Flight model: system schedule margins nearly depleted. Problems with mass, power, and pointing budgets.

Engineering Review: F. C. Vandenbussche

See handout -- annex 4

• Spacecraft: EM program to be completed on Feb. 10, 1994
• Attitude and orbital control: third gyro being implemented
• Power: subsystem to be delivered middle Feb. '94
• Launcher: First Atlas IIAS (AC 108) successfully launched
• Pointing: concerns about 4 reaction wheel, UVCS imbalance, inter experiment jitter. Need to establish time lining for experiments.

Input request: Info for update S/C payload thermal model and load analysis

Payload & Operations Development Status: C. Berner

See handout -- annex 5

• Organization: Heinrich Schröter appointed SOHO AIV engineer. Helmut Schweitzer will focus on ground Ops together with Sergio Vaghi
• Power-thermal problem: optical properties of OSR too wide. Solutions reviewed, PI's asked to endorse EID-A updated temperature limits
• LASCO, UVCS, SUMER, and EIT must deliver structural model updates at ESTEC by Feb. 7, '94
• Updated FM thermal models requested at ESTEC by Feb. 15, '94
• Scientific data recorded during EMC test to be picked up and assessed by experimenters. ESA requires status report by Feb. 7, '94. Experimenters desire visibility of their data during test. Project will forward request to Matra
• FM programme: delivery schedule now critical, PI's must adhere to schedule henceforth. ESA recommends that core team be put together now, to fullfil FM PLM and S/C system test obligations
• Two options presented for SWT request that instrument EGSE's not be put in cleanroom at KSC

SOHO Cleanliness: R. Thomas

See handout -- annex 6