Subject: [Fwd: SDO Weekly Report for August 12, 2005] From: Phil Scherrer Date: Thu, 11 Aug 2005 16:08:50 -0700 To: hmi_local@quake.Stanford.EDU -------- Original Message -------- Subject: SDO Weekly Report for August 12, 2005 Date: Thu, 11 Aug 2005 16:35:53 -0400 From: Liz Citrin To: SDO WEEKLY DISTRIBUTION:; *_SDO Weekly Report for August 12, 2005 _* _Executive Summary:_ This week the SDO CCB formally approved the CCR changing SDO’s baseline to two 18-m antennas (vs. the original two 9-m antennas), and adding a 3^rd 18-m antenna for LRO. Also this week, the battery contract for SDO was awarded to AEA Technology Battery Systems, Ltd. of Oxfordshire, England. _Detailed Reports: _In spacecraft activities this week, the pre-environmental review for the ECRA (Electrical Contact Ring Assembly) was held. Also, the Battery has been awarded. It is currently in a 14 day protest period, which is required by the FAR. The Solar Array Spec and Sow will be baselined next week. The propellant tank Design Certification Review is scheduled for 9/27/05. The MMIC bonding issue, which has been threatening the Ka-band transmitter activities, has been resolved through the diligent efforts of Northrup-Grumman (NG) and GSFC in perfecting a reliable bonding process. With this process, NG and the in-house Ka-transmitter ETUs can proceed. SRAM issues are that the current version of 3D-plus SRAM from BAE does not meet SEU requirements. Current test data reveals that BAE SRAM is only good at 1x10-9; SDO’s requirement is SRAM that is at 1x10-10 or greater. Parts engineers have found that Honeywell has a 3D-plus SRAM that is 1X10-10 and are investigating potential delivery schedules. The CRIF roof is leaking which is delaying SDO’s move into the facility. FMD has plans to start work next week to fix problem; repairs are estimated to take one month. _ _In instrument news, the AIA clean room has been completed and is being cleaned for certification this week. The AIA flight spider frames are expected this week and the objective lens for the guide telescope is in inspection. Four flight filter wheels are expected at the end of August and the first AIA flight CCDs are on track to be delivered in September 2005. The HMI flight software team is making progress on the mechanism software with the hollow core motor, shutters, and alignment mechanisms code being developed and tested on brassboard mechanisms. The flight hollow core motors have completed bakeout and functional characterization testing. The heater routing on the HMI flight structure has completed this week. All filter oven parts have been received and assembly will begin next week. _ _The EVE management team visited USC this week for status and planning. Nearly all mechanical parts for ESP have been received and are being sent to GSFC for surface treatment. The ESP flight diodes have been received and are being sent to LASP for cleaning and then will go to SURF for calibration/screening. Space Instruments has built up the flight electronics for the ESP up to part shortages. LASP is furnishing the last of the flight parts shortly. The test sawing of a sample CCD at MIT under the revised process went well with no apparent damage. Sawing of the flight candidate wafer is underway. _ _The ground system attended a joint SDO/LRO/Code 450 meeting to discuss critical schedule milestones, documentation, and test and certification of the upcoming three ground stations at White Sands, NM. The PDR and CDR packages, as well as the Ground System Readiness Test Plan, GS schedule and the like have been passed onto the LRO Project to help accelerate their design process. The meeting with the WB57 aircraft group has been delayed due to the sliding Shuttle support schedule and the WB57 support of same. A Vendor CDR has been scheduled with the antenna manufacturer for 12Sep05 and a SDO/LRO Antenna Delta-CDR at GSFC on 30Sep05. Nominal progress continues with all subsystems. ___________________ Elizabeth A. Citrin SDO Project Manager Office 301-286-1222 Fax 301-286-0214 Cell 410-241-0503