Cassini Weekly Significant Events for 08/24/00 – 08/30/00
Cassini Weekly Significant Events
for 08/24/00 – 08/30/00
The most recent spacecraft telemetry was acquired from the Goldstone tracking station on Wednesday, 08/30. 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 ( "http://www.jpl.nasa.gov/cassini/today/" )
The checkout of the new Command and Data Subsystem (CDS) flight software concluded this week with the successful completion the SSR management and telemetry mode demonstrations and the loading of the emergency RAM. The Periodic Engineering Maintenance (PEM) sequence was executed. PEM activities included Backup ALF Injection Loader (BAIL) maintenance, Engine Gimbal Actuator (EGA) and Reaction Wheel Assembly (RWA) exercises.
The C21 instrument power-on and IEB load mini-sequence was approved for uplink to the spacecraft next week. The Preliminary SIV Approval Meeting was held for C22 A Sequence Change Request approval meeting was held for C23 and formally approved one change requested by SCO (AACS).
A Jupiter System Assessment Meeting was held to mark the formal completion of development for the Jupiter phase.
The Instrument Operations Team Requirements and Design Review for the Tour Phase occurred this week. The review board gave the team high marks for the material presented.
An update to the Mission Sequence System was delivered to correct a problem with the C-kernel output file in the Pointing Design Tool. Installation on the Science Operations and Planning Computers at the remote science sites was completed later in the week.
A briefing was given to Program Management regarding status of and current challenges in development of the Science Opportunity Analyzer, Pointing Design Tool, and Cassini Information Management System software tools.
ULO personnel have proposed a revised sequence development schedule for the post-Jupiter time frame. The new schedule reduces the process to eight weeks by eliminating the overlap of sequence development and execution. This process improvement should result in more efficient operations.
A preliminary version of the MSSO Functional Requirements Document (FRD) has been released for review. This document will form the basis of the MSSO Requirements and Design Review planned for September.
User access to the Central Database (CDB) was terminated this week with decommissioning of the CDB scheduled for mid-September. The CDB has been replaced by the TMOD provided Distributed Object Manager (DOM) system.
Cassini Outreach
Cassini Mission to Saturn and Titan
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