Meetings
SORCE Science Team Meeting July 9, 10, 11,
2001 at the Laboratory for Atmospheric and Space Physics, University
of Colorado, Boulder, Colorado has been postponed.
HESSI Launch, June 7, Kennedy Space Center
SORCE Fairing Fit Check, June 18, Chandler, Arizona
FOG ACS Review, June 28, Orbital, Dulles, Virginia
SORCE scientists plan to present papers or
attend the following 2001 meetings:
- Joint AGU Meeting and AAS Solar Physics Division Meeting,
May-June 2001 Boston, Massachusetts
- Workshop on the Evolving Sun and Its Influence on Planetary Environments
June 2001 Granada, Spain
- International Solar Cycle Studies 2001-Solar Variability, Climate
and Spaceweather June 2001 Longmont, Colorado
- IAGA Session on Solar Variability August 2001 Hanoi, Vietnam
- Calcon 2001 September 2001 Logan, Utah
- NewRAD October 2001 Gaithersburg, Maryland
SORCE
May 2001 Project Summary
The SORCE Program is on schedule and within budget. Launch is scheduled
for July 31, 2002. No descopes are required at this time, but removal
of the FOG "gyros" ACS component from the SORCE spacecraft
is still under consideration. A review will be held June 28, 2001
at Orbital to evaluate the potential descope. The ECP (engineering
change proposal) to remove the gyros is currently under assessment.
SORCE Red Team development continues to evolve. The statement of
work for Orbital and the Aerospace Corporation are in a budget discussion
phase. To date, Red Team activity has been funded by contingency
accounts.
SORCE continues to closely monitor and adjust schedules for instrument
fabrication and to meet variable program needs. Schedule optimization
has become limited.
The spacecraft bench was shipped from the vendor to Orbital, April
23, 2001 for structure testing. The structure tests were successful
and the bus was received at LASP May 22, 2001. The 15-week late
delivery of the bench was remedied by creative instrument integration
rescheduling.
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SORCE Spacecraft Bench
The bench
has been mounted on the Flotron in the LASP clean room and awaits
instrument integration.
Continuing concerns for the SORCE program include the depletion
of contingency funds due to unforeseen parts costs, the potential
ICESat/SORCE launch conflict, large coupled loads to the SORCE
instruments from the spacecraft, and the late delivery of the
SORCE transceiver from Alenia. All potential problems are in the
process of review and mitigation.
SORCE
Instrument Status
XPS is complete but nevertheless it appears that a faulty part
discovered during initial testing may have been a generic problem
and a total change out of the FPGA may follow. All TIM mechanical
parts are in house, electrical TIM parts are 98% complete. SOLSTICE
A and B parts are 96% complete. Microprocessor Unit parts are
75% complete and electrical parts are 33% complete. MU Software
coding is 95% complete for TIM and XPS, SOLSTICE is 70% complete,
and SIM is 20% complete. The draft revision of the GDRD (general
design requirements document) is under evaluation as well as the
Observatory I&T (integration and test) plan.
SORCE
Science Update
Dr. Gary Rottman reported on SORCE Science Team Activities. He
attended the recent CERES Science Team Meeting in Hampton, Virginia,and
delivered a SORCE presentation. Dr. Rottman noted and commented
on the synergy between the CERES mission and SORCE.
The SORCE Science Team meeting that had
been scheduled for July 9, 10, 11, 2001 has been postponed until
October 2001.
Unfortunately, the SORCE instrument delivery schedule now overlaps
the meeting time in July. Extramural activity on the part of the
instrument teams could impact instrument development.
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