IRS-1C MISSION PLANNING, ANALYSIS AND OPERATIONS

The IRS-1C mission planning activities began with the payloads choice as per mission objectives derived through users' requirements, Detaile d mission specifications were drawn up for both space and ground segme nt elements of the mission after detailed mission analysis, The world referencing schemes for all payloads have been designed to enable user s to specify the required data, A knowledge-base and graphical represe ntation of spacecraft subsystems are some of the new features introduc ed for spacecraft health analysis, This article details the spacecraft operations carried out in the launch and early orbit phase and also o n the performance of the spacecraft subsystems in-orbit.