Cassini Significant Event Report

For Week Ending 04/23/99

Spacecraft Status:

The most recent spacecraft status is from the DSN tracking pass on
Wednesday, 04/21, over the Madrid tracking station. 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 (

On Friday, 04/16, a playback was performed of recorded engineering data.

On Monday, 04/19, Part 1 of the AACS Default IVP Vector update was

On Tuesday, 04/20, the Solid State Recorder (SSR-B) record and playback
pointers were reset.

On Wednesday, 04/21, Part 2 of the AACS Default IVP Vector update was
performed, and was followed by a High Watermark Clear.

Upcoming events:

Activities scheduled for the week of 04/23 - 04/29 include an SSR Pointer
Reset on 04/27, and Periodic Instrument Maintenance beginning on 04/29.

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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