Cassini Significant Event Report

For Week Ending 11/27/98

Spacecraft Status:


The most recent Spacecraft status is from the DSN tracking pass on Tuesday,
11/24, over the Canberra tracking station. The Cassini spacecraft is in an
excellent state of health and is executing the Cruise 11 sequence normally.
The speed of the spacecraft can be viewed on the
"Where is Cassini Now?"
web page (http://saturn.jpl.nasa.gov/operations/present-position.cfm).

Spacecraft Activity Summary:


On Friday, 11/20, routine maintenance was performed on the Solid State
Recorder (SSR-B) flight software partitions


On Saturday, 11/21, the Solid State Recorder (SSR-B) record and playback
pointers were reset as planned (nominally once per week).


On Sunday, 11/22, three activities occurred. Science & Engineering Record
(S&ER) 3 telemetry mode was installed into the CDS in preparation for the
Instrument Checkout in January. An accelerometer calibration was
performed. The accelerometer was powered up for this activity and will
remain powered ON in preparation for the upcoming Deep Space Maneuver
(DSM). The AACS High Watermarks were cleared as the last activity for this
day.

Upcoming events:


Activities scheduled for the week of 11/27-12/03 include: SSR Pointer Reset
(11/28), Propulsion Module Subsystem (PMS) Pressurization & Playback
(12/01), DSM Mini Sequence Uplink and Execution (12/02), Power on VIMS
Decontamination Heaters, Active IVP Vector Update, and AACS High Watermark
Clear (12/03), and SSR Memory Load Repair (12/03).



Additional information about Cassini-Huygens is online at http://saturn.jpl.nasa.gov.


Cassini will begin orbiting Saturn on July 1, 2004, and release its piggybacked Huygens probe about six months later for descent through the thick atmosphere of the moon Titan. Cassini-Huygens is a cooperative mission of NASA, the European Space Agency and the Italian Space Agency. JPL, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Office of Space Science, Washington, D.C.


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