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- From: baalke@kelvin.jpl.nasa.gov (Ron Baalke)
- Subject: Magellan Update - 11/20/92
- Message-ID: <1992Nov20.232659.8134@elroy.jpl.nasa.gov>
- News-Software: VAX/VMS VNEWS 1.3-4
- Keywords: Magellan, JPL
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- Reply-To: baalke@kelvin.jpl.nasa.gov
- Organization: Jet Propulsion Laboratory
- Date: Sat, 21 Nov 1992 07:26:54 GMT
- Lines: 36
-
- Forwarded from the Magellan Project
-
- MAGELLAN STATUS REPORT
- November 20, 1992
-
- 1. Magellan continues to operate normally, performing a
- starcal (star calibration) and desat (desaturation of
- the reaction wheels) on each orbit and transmitting a
- carrier plus 40 bps X-band signal.
-
- 2. The spacecraft has completed 6136 orbits of Venus; 500 so
- far in Cycle 4, which will end on May 25, 1993.
-
- 3. Tuesday, November 17, the project conducted a design
- review of an aerobraking experiment to be conducted at
- the end of Cycle 4. Preliminary modeling of dynamic
- pressures, temperatures and attitude control indicate
- that circularizing the orbit on an aerobraking plan which
- proceeds aggressively for the first several weeks, and
- backs off in the later stages, appears to be very
- feasible.
-
- 4. A Spacecraft Team Technical Interchange Meeting (TIM) was
- held on Thursday. The spacecraft performance has been
- excellent since the last TIM although there have been 12
- TWTA (Traveling Wave Tube Ampilfier) SSOs (Spurious Shutoffs),
- including five on Tuesday, and there has been some increase
- in the slippage of the Solar Array Drive Mechanism since the
- end of the apoapsis occultation season.
- ___ _____ ___
- /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov
- | | | | __ \ /| | | | Jet Propulsion Lab |
- ___| | | | |__) |/ | | |__ M/S 525-3684 Telos | Learn to recognize the
- /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | inconsequential, then
- |_____|/ |_|/ |_____|/ | ignore it.
-
-