SDO Weekly Report for July 2, 2004 The "Approval to Proceed to Implementation for the Living With a Star (LWS) Prgram and the Solar Dynamics Observatory (SDO) Project" letter signed by Dr. Weiler has been received. This document is available on the SDO Management Information System (MIS) site--Document No. 464-PROJ-CORR-0024. The final LWS Program Plan and SDO Level 1 requirements are also available. In procurement news, the Star Tracker and Reaction Wheel Assembly RFI's have been posted. The Single Board Computer (SBC) procurement is nearing completion. The Atmospheric Imaging Assembly (AIA) Instrument C/D/E Contract finalization is lagging. This is now threatening schedule, as Lockheed Martin Solar and Astrophysical Laboratory (LMSAL) cannot get required subcontracts in place with the Smithsonian Astrophysical Observatory (SAO) to begin long lead work on the AIA telescopes. The Project and procurement office are investigating emergency interim approaches. Our Project MIS administrators met with the programmers developing the MIS database to discuss additional requirements. The enhancements (integration of drawings, work orders, problem reporting in the system) are planned to be in place this fall. The ACS requirements have been entered into DOORS. The Atmospheric Imaging Assembly (AIA) investigation continues its design development with a review of the Structural Model (SM) Focal Plane Assembly and Housekeeping/ADC brassboard; SM testing is scheduled for December. SAO successfully verified accessibility of the new mount design using a mockup telescope assembly. A PDR RFA closure report was submitted to the project and a review of the thermal power trades is scheduled with GSFC next week. Results of the first AIA Risk Management board were reported at the AIA Monthly Status Review and a risk management database will be submitted for the next SDO RMRB. Contractually, SDO continues to expedite the Phase C/D/E contract extension and has released an interim Letter-Of-Intent to maintain continuity in the subcontract efforts. e2v currently has four batches of HMI/AIA CCD flight chips at the 100%, 80%, 20% and 10% fabrication levels. e2v expects the DC Probe results to be complete on the first two flight batches at the end of July 2004 giving sufficient yield data to assess the thin/thick gate decision. GSFC and HMI will visit International Rectifier (IR) next week to discuss the impacts of replacing the VPT DC/DC converter with an IR Converter on the Common Buy list. Lambrecht will provide sufficient calcite to HMI for two additional Lyot filters in three weeks. The calcite provided by Lambrecht meets flight requirements, but is of lower grade than desired for flight filters. HMI will continue to search for high quality calcite. The HMI detailed radiation analysis is progressing well with only the alignment mechanism and CEB remaining. An updated Camera Electronics Box solid model will be sent next week for integration into the HOP model, and HMI intends to send GSFC an updated HMI Electronics Box 3D step file. The shutter life test is progressing on schedule with at 20 million movements completed, and 80 million expected by December 2004. The ground system held the first U2/ER2 working meeting with Dryden. It appears that the planned Ka-transmitter payload can be easily accommodated by the U2's power and dimensional allocations. Dryden is in the process of drafting a 'cost to implement' proposal for the GSM's review. Related to DDS design, the TSI Front End Processor (FEP) is still not performing up to expectations. TSI is presently helping GSFC SDO personnel trouble shoot the RF combiner problem that we are experiencing this week. Related to this issue, the Ground System Manager held a meeting with NSA design engineers to see what FEP technology is available for NASA use. Have a good 4th of July holiday! -- Liz Citrin SDO Project Manager 301-286-1222 FAX 301-286-0214 Cell 410-241-0503