Subject: SDO Weekly Report for January 14, 2005 From: Elizabeth Citrin Date: Thu, 13 Jan 2005 16:26:56 -0500 To: "SDO WEEKLY DISTRIBUTION":; SDO Weekly Report for January 14, 2005 Executive Summary: SDO is preparing the CCR to the Level 1 requirements to change the maximum perigee of the transfer orbit from 300km to 2500km. In order to present a solid picture at CDR, the Project has directed subsystems to assume approval of the 2500km perigee in their analyses and preparations for the mission CDR; the Project will work with HQ in parallel to complete the formal approval process. As mentioned previously, this change does not affect the launch vehicle’s secondary capability, and avoids significant modifications that would be required for disposal at lower perigee’s. All elements continue to make good progress towards their CDR’s and the SDO Mission CDR. Detailed Reports: Spacecraft procurement activities continue to progress. The ACS Digital Sun Sensor was awarded to Adcole. Evaluation of proposals is on-going for the Ka Band High Gain Antenna, the Propulsion System Fill/Drain valves, Isolation Valves and Check Valves, and the ACS Star Tracker. With regard to our in-house avionics and development units, efforts continued. A significant milestone was reached with the Ka-Band Transmitter Breadboard testing completed. Testing continued using the GCE software diagnostics and with the GCE Gimbal Interface Card and SDN Breadboards. Progress was made in testing the C&DH Ka Comm Breadboard with the Instrument Data Simulator. Flight Software received the S Com Breadboard, which will be used for integration testing of the S Com SDN Build 1 Software. Flight Software testing of the PSE SDN Breadboard continued. The PSE ETU work progressed, with completion of the ETU PSE Backplane and the first ETU Output Module. The project held its Project Monthly Review for the spacecraft subsystems and instruments, where schedule and budget progress were reviewed. The ACE CDR was also held this week. EVE held a dry-run CDR presentation in preparation for the Instrument CDR on February 2-3, 2005. The team is well prepared for the review and will have a presentation package available a week in advance of the meeting. The ETU EVE electronics testing has found some bugs in the Instrument controller Electronics build and they are trouble shooting this week. The work may reset the multiple board system testing to February around the ICDR and High Speed Bus testing dates at GSFC. The ETU CCD assembly is complete and will begin EMI testing shortly. The ETU Filter thermal testing is also in process. The AIA CDR preparation continues with the completion of 2 peer reviews (mechanism and focal plane assembly) this week (6 more next week) and steady progress in the development of the 11 electronics boards with 2 in layout, 4 in assembly, and 5 in test. With most of the Structural Model components received; a delay in delivery of the structural tube will slip integration and environmental testing about 2 weeks. The structural model primary mirror assembly has completed cure, and will be thermally cycled this week with vibration testing the following week. The pull test of a bonded tube assembly was successfully completed with no measured or visible changes. The filterwheel lifetest units have achieved 2 (of 64) million cycles this week; the aperture selector and shutter life tests are delayed due to a 4 week delay in the delivery of the motors. Parts for the focus mechanism lifetest are in house and preparation continues towards life testing in February. Assembly and vibration testing of the active secondary mirror PZT assembly was completed; vacuum test preparations continue. Fabrication of the flight mirrors continues at Tinsley and SAGEM; both are projecting slight delivery delays of 1-2 weeks due to minor manufacturing issues. The Ground System team continues working on their CDR Peer Reviews and finalizing some of the detailed design specifications. All review dates and panel members have been selected and confirmed. A first telecom session was successfully conducted with the Receive Range Command Processor (RRCP) vendor (RT-Logic) to discuss its various operations scenarios and detailed interfaces. The final two Test Conductor (TC) positions have been filled, Jennifer Sager is to support the ACS lab and Bill DeHaven is for the PSE lab. The HMI flight front window filter is in the process of being ordered from Andover Corporation, and anti-reflective coating has been applied to the focus blocks. 82% of CCD flight batches have started and LMSAL is scheduled to conduct a key inspection at e2v prior to packaging flight CCDs. The first flight CCD batch will be packaged in February. The ETU HMI filter oven is assembled being integrated into an optics package test structure for thermal vacuum testing. The filter oven control electronics have been installed and the filter oven assembly is currently being instrumented for testing at the end of the January. The Hollow Core Motor life test is art 28 million movements. The ETU HMI Electronics Box enclosure is assembled and the brassboard motherboard and bridgeboard have been installed. The Data Compression/High Rate Interface board has completed board level testing. The HMI flight front window filter is in the process of being ordered from Andover Corporation, and anti-reflective coating has been applied to the focus blocks. 82% of CCD flight batches have started and LMSAL is scheduled to conduct a key inspection at e2v prior to packaging flight CCDs. The first flight CCD batch will be packaged in February. The ETU HMI filter oven is assembled being integrated into an optics package test structure for thermal vacuum testing. The filter oven control electronics have been installed and the filter oven assembly is currently being instrumented for testing at the end of the January. The Hollow Core Motor life test is art 28 million movements. The ETU HMI Electronics Box enclosure is assembled and the brassboard motherboard and bridgeboard have been installed. The Data Compression/High Rate Interface board has completed board level testing. -------------------------------- Elizabeth Citrin SDO Project Manager NASA/GSFC 301-286-1222 (office) 410-241-0503 (cell) 301-286-0214 (fax)