STATUS/ACCOMPLISHMENTS We successfully completed our POP 03-1 budget review with GSFC Code 400 and we are in the process of preparing for further reviews/inputs which will occur over the next few weeks. The SDO Systems team received and reviewed the preliminary SCR inputs (58 total action items) from both the external and internal SCR review teams. The Systems team also met with the subsystem leads to discuss and distribute these preliminary actions and comments to the appropriate SDO subsystems for further evaluation. In addition, post-SCR development work continues as the SDO team moves into the preliminary design phase. Systems team support continues in the areas of updating requirements definition, reliability analysis, operations concept definition, electrical architecture development, and instrument accommodation. A significant focus this week was providing systems support in the Subsystem Data Node (SDN) development effort, helping to address design issues and preparing for the final review and sign off of requirements towards the prototype hardware development effort. In discussions with the Independent Review Team (IRT), the road to the Initial Confirmation Review (ICR) is as follows: - IRT Preliminary Assessment Briefing to Program/Project. - Independent Assessments: informal meetings & telecons to address topics identified by the IRT. - Independent Cost Estimate (ICE) Peer Review. - ICE Reconciliation with Project. - Final Assessment Peer Review. - Final Assessment Program/Project Briefing. - GSFC/Bill Townsend/PMC Briefing. - Code S/Scolese & Ledbetter Pre-briefing. - EPMC Presentation. - Agency PMC Presentation (ICR). The duration of this activity depends a lot on our ability to schedule presentations with the PMC's. Both the IRT & HQ/LWS stated that the project can proceed with formulation since it is unlikely that SDO will have any major problems. The IRT believes that most of the ICR process can be wrapped-up by mid June with some of the briefings and presentations falling into late June. Late next week the IRT should have a handle on the schedule/availability for addressing topics identified by their members at which time we can start scheduling reviews, briefings, and presentations. The Instrument teams concentrated on ICD work, CCD Contract Modification, HMI reliability improvement recommendations, SHARPP SPECTRE reorientation, and IRT radiation concerns with a portion of the EVE instrument. For the ICDs, we continued draft development and have completed half of our scheduled meetings with the spacecraft subsystem leads to build the ICD content lists for their areas of attention. We are using an extensive checklist of candidate interface requirements to prompt the dialogue and to insure thorough discussion. Our next phase is to generate a detailed outline of the three required instrument ICDs and to conduct detailed interface conversations with the instrument teams. There are a lot of specific details to resolve and ICD work will be ongoing for quite some time. We completed the details associated with the NRL SHARPP contract modification which directs NRL to initiate subcontracts for the development phases and to procure engineering units for the SDO CCD detectors and associated camera electronics. NRL will contract with E2V for the development of the 4k x 4k CCDs and with RAL (Rutherford Appleton Lab) in England for the design and engineering development electronics required to control and readout the CCDs. E2V has started work on the development of the CCDs. We are establishing a CCD/Electronics Board made up of NRL, HMI, & GSFC personnel to ensure proper & timely development of these key areas. For the flight units of the CCDs & associated electronics, HMI & SHARPP will have separate & individual contracts with each company. We are looking at a revised accommodation of the SPECTRE component of the SHARPP instrument suite. SPECTRE requires a north south orientation with respect to the sun to minimize the effects of a residual spectral contamination from a strong adjacent Magnesium line. An initial look of simply reorientating the spacecraft by 90 degrees does not work so we are conducting telecons/meetings to work possibilities/trades. We also provided EVE with advance copies of actions from the SDO SCR review panel concerning the complexities and stringent sensitivities of the Optics Free Spectrometer (OFS) assembly. The concerns expressed include operation in the expected particle radiation environment, the unusually low magnetic field susceptibility constraint, and the complexities of the OFS pressure vessel and valving design. HMI changed its orientation on the spacecraft to a "mirror image" of itself in agreement with the mechanical systems group. The change improves the CCD electronic box radiator field of view. HMI also reviewed the glint free field of view requirements of the sensor and determined HMI requires a 12 degree half-cone glint-free field of view as measured from any point on the circumference of the HMI aperture. This is slightly greater than the original request of 10 degrees but can be accommodated per the mechanical systems group. HMI provided details on their Electronics Box including dimensions and connector locations and a draft photo documentation plan. We are also actively assessing a set of three reliability improvement recommendations offered by the HMI team. The assessment will be made in context with the mission for each option. The mission assurance (MA) team started the process of identifying and tailoring a subset of the Mission Assurance Requirements (MAR) for component subcontracts based on the scope of the work being contracted. Our first item for this process is the Single Board Computer (SBC), so the MA team is working with the Product Design Leads for the SBC and Command and Data Handling to identify appropriate MA requirements. Mike Garner has been brought on board to replace Ken Vorndran as the SDO Software Quality Engineer (SQE). The information gleaned from the SCR work/presentations will aid in the MA team performing the planned reliability activities for SDO. In the near term, the team will look at four items from a reliability standpoint: 1) Ka Band (RF), 2) Deployment System (Solar Panels, HGAs), 3) Battery (small single string cells vs. larger cells), and 4) Ground Station Availability. The ground system team worked on three key Science Operation Center (SOC) issues; command security, command structure/format, and science instrument health and safety distribution. A white-paper assessment is being done to determine what if any instrument command encoding should be performed to protect the observatory. A draft of a suggested command frame structure is being prepared for SOC review in an effort to standardize command inputs to the Mission Operations Center (MOC). Also, a telecon was held to determine what if any benefit there might be to directly distributing health and safety data from White Sands Data Distribution Center (DDC) to each individual SOC. No apparent or mission critical benefit was found. In addition to these items, the ground system is working on further schedule definition and has received final approval for the requested floor space in building 14, second floor, from the GSFC space utilization committee. For configuration management, the team started helping the Observatory team with the Development Plans for each subsystem. In addition, they are preparing for a project review/demo (5/8/03) of the documents/CCR portion of the Intranet database. The team is also busy assigning document numbers to all documentation within the office for tracking purposes and updating the action item list. Thanks, Ken "Individual commitment to a group effort - that is what makes a team work, a company work, a society work, and civilization work." Vince Lombardi Hall of Fame football coach Just a reminder, tomorrow is the NFL Football Draft - GO RAVENS!! [ Attachment (text/x-html): 8515 bytes Character set: us-ascii ]