Subject: [Fwd: SDO Weekly Report for October 22, 2004] From: Philip Scherrer Date: Thu, 21 Oct 2004 17:11:54 -0700 To: hmi_local--AT--quake.Stanford.EDU -------- Original Message -------- Subject: SDO Weekly Report for October 22, 2004 Date: Thu, 21 Oct 2004 17:18:21 -0400 From: Elizabeth A. Citrin To: SDO Weekly Report for October 22, 2004 Executive Summary: At the request of the LWS Program and SDO HQ Program Executive, SDO has taken a preliminary look at secondary payload accommodation issues. A summary of potential impact areas was identified, and minimal impact (to SDO) approaches were discussed, along with dates that information, analyses, and hardware would need to available in order to support SDO's schedule. The SDO Science Operations Working Group (SOWG) held a productive face-to-face meeting at GSFC this week. Topics covered included CDR responsibilities, operations planning, and ground system readiness testing. Detailed Report: HMI held a peer review on Flight Software (FSW) in preparation for the CDR this week. The peer review went well and no major issues were identified. An additional peer review has been scheduled for HMI next week to cover the HMI mission operations, integration and test, and ground system. The Hollow Core Motor (HCM) life test started this week. The primary and secondary lenses for the telescope assembly have been completed and the requirements are being verified. Anti-reflective coating has been applied to the secondary lenses. All HMI electronic board designs have been completed. LMSAL has set up office space for RAL for the week of CDR to accommodate the delivery and checkout of the Development Model (DM2) camera. The DM2 camera will contain an Aeroflex FPGA waveform generator. HMI and AIA participated in the Science Operations Working Group at GSFC this week. EVE participated in two reviews at GSFC this week. The first was the SDO Contamination Control Peer Review which began with a tour of GSFC facilities. EVE contamination control requirements were presented and round table discussions brought better understanding of contamination and risks between all the teams participating. The second meeting is the SOWG where ground operations are discussed. Arrangements are being made by us to support the EVE Critical Design Peer Reviews at LASP in November. The EVE electronics PWB’s are being produced by subcontractors to LASP. GSFC is on track for supplying the common buy parts in time for populating the boards at the end of this month. Progress continues in the structural development effort with the SM tube now in the manufacturing queue for layup at COI. Approximately 20% of the SM components have been fabricated and delivered. Fabrication of the Bond Test tube is completed and the flanges are being prepped for bonding; the bond pull test will be completed in the next several weeks. Parts for the mechanism and heater board have been "kitted", the ISS strain gauge pre-amp board is in layout, and the design of the AEB power converter board and AEB interconnect board has been started. With the submittal of two this week, AIA has now responded to 9 of 14 PDR RFAs. Also this week, a draft environmental test flow plan has been submitted to the Project for review and AIA team members supported the SDO contamination control TIM at GSFC. In spacecraft news, the MMIC life test (part of the solid state power amplifier in the Ka-band transmitter system) has passed the (accelerated) 10-year mark, a major milestone; the life test will continue. The kick-off meeting for the Electrical Contact Ring Assembly (ECRA) was held at Starsys Research Corporation in Boulder last week, and the Design Conformance Review (DCR) for the QWKNUT release mechanism actuator (for the Solar Arrays and High Gain Antennas) was held this week at Starsys. The RFP for the rotary joint has been released. In addition, the Mechanical and Propulsion teams presented the results of their risk/benefit analysis of a wet vibration test of the propulsion system. Thorough analyses by the mechanical team indicates that a dry test of the propulsion system will be sufficient to retire the workmanship risk associated with the propulsion module; this approach, in addition to minimizing the schedule impacts, avoids the risks associated with not being able to completely dry out the propulsion system. The analyses and conclusions will be provided to the RFA originators for closure. -- Liz Citrin SDO Project Manager 301-286-1222 FAX 301-286-0214 Cell 410-241-0503