Subject: SDO Weekly Report for January 21, 2005 From: Elizabeth Citrin Date: Fri, 21 Jan 2005 08:27:13 -0500 To: "SDO WEEKLY DISTRIBUTION":; SDO Weekly Report for January 21, 2005 Executive Summary: All elements of SDO that have not already accomplished a CDR continue to make good progress towards their CDRs. Detailed Reports: Spacecraft procurement activities continue to progress. The Propulsion System Fill & Drain valves procurement was awarded to Marotta Controls. Evaluation of proposals is on-going for the Ka Band High Gain Antenna, the Propulsion System Isolation Valves and Check Valves, and the ACS Star Tracker. The Pre-Solicitation notice was released for the Battery RFO. Proposals for the S-Band Transponder are expected at the end of this week. With regard to our in-house avionics and development units, efforts continued. A meeting was held with Northrup Grumman/ATL to discuss ETU and Flight manufacture and assembly of the Ka-Band Transmitter. Preparations were made for performing a key test of the Ka Comm Breadboard with the Ka-Band Transmitter Breadboard next week in the Ka-Band Transmitter lab. The ground system participated in the GN&C CDR Peer Review, emphasizing the MOC and Network interfaces. A draft agenda for the ground system CDR is being reviewed internally. The MOC control center build has been scheduled and no significant issues are outstanding with the somewhat revised time-line. Construction will begin next month. The SDO project has sent the HMI team a proposed modification to the HMI statement of work for review. The contract modification will cover the HMI effort in developing the HMI/AIA Joint Science Operations Center. HMI held their monthly status review with the project this week. The HMI team continues to work on the Request For Actions from the HMI CDR and plans to submit response to all RFAs by the end of February 2005. HMI has scheduled a facility to conduct a radiation testing on the Front Window in February in response to an RFA from the HMI CDR. LMSAL traveled to Vision Composites to conduct a fit check and inspect the metering tube needed for structural model testing. The metering tube is expected to arrive at LMSAL next week for installation into the structural model. The alignment mechanism and the front door have been assembled and tested, and are being integrated into the structural model. The DC/HRI brassboard and spacewire breadboard have been powered on and the electronics team is working through the initial start-up issues of getting the boards up and running. The HMI grounding diagram is in the process of being finalized. EVE successfully completed EMI testing of the ETU CCD, camera and power supply assembly. Preliminary review of the results shows no observable effects from radiated or conducted EMI sources including radiated to 100 V/m. The ACS and Flight Dynamics teams held their CDR this week. The Integration & Test CDR is also scheduled for this week. The AIA team continued this week with preparations for the upcoming CDR with completion of (ten of twelve) peer reviews of the AIA Electronics, flight software, contamination control, and the cameras. Reviews of the Image Stabilization System and the Guide Telescopes are scheduled for Friday of this week. Responses for all action items from the PDR have now been completed and forwarded to the review panel for closure. Current funding for AIA runs out at the end of this month; SDO is working on funding AIA through July 15th. Motors for the lifetest AIA shutter mechanism, delayed from December, have been received; assembly and functional testing continues prior to initiating the lifetest in March. Dave Akin will be traveling to GSFC next week to measure inertial disturbances of prototype filterwheel and shutter mechanisms on a Kistler table. -------------------------------- Elizabeth Citrin SDO Project Manager NASA/GSFC 301-286-1222 (office) 410-241-0503 (cell) 301-286-0214 (fax)