Cassini Significant Event Report

For Week Ending 10/27/00

The most recent spacecraft telemetry was
acquired from the Madrid tracking station on Wednesday, October 25th. The
Cassini spacecraft is in an excellent state of health and is operating
normally. The speed of the spacecraft can be viewed on the "Where is Cassini Now?" web page.

Activities this week included the completion of the fifth instance of the
5-Day Repeating Template for Jupiter observations, Magnetospheric Imaging
Instrument (MIMI) sensor power on, uplink of a Radio and Plasma Wave Science
(RPWS) flight software patch and Instrument Expanded Block (IEB) load, Cassini
Plasma Spectrometer (CAPS) Memory Readout (MRO), Attitude and Articulation
Control Subsystem (AACS) High Current MRO, and an SSR Management Strategy

The final approval meeting was held for Cruise 23. This sequence will be
uplinked next week and will activate in early November. The processing of
Imaging Science Subsystem (ISS) Jupiter data has resumed with four sets of
downlinked data (950 images) processed and delivered to the ISS Team Leader
in Arizona in about four hours. Selected ISS images are now being displayed
on monitors at JPL.

Analysis of the data acquired during the first Jupiter templates in C22
using a reconstructed C-kernel indicates that the spacecraft pointing was
excellent and "right on" for the RADAR activities. Based on these
evaluations, there will be no need to make any pointing changes to planned
RADAR activities for C25.

System Engineering team members supported the kick-off a DSIE (AMMOS
Delivery and Installation System Engineering) meeting this week. This is a
new forum which is intended to provide overall coordination of
multiple-SSM deliveries and assist with overall system engineering within
Telecommunications and Mission Operations Directorate (TMOD)/ Deep Space
Mission System Services (DSMS).

Telemetry, Command & Data Management (TC&DM) software version 25.2 for HP
machines has been tested for Distributed Object Manager (DOM) and
Navigation support. Testing results indicate nominal performance.
Cassini Outreach personnel exhibited at the American Astronomical
Society's Division for Planetary Science meeting and made a well received
poster presentation of classroom demonstrations and activities.

Additional information about Cassini-Huygens is online at

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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