Orbit maneuvers may be planned to raise the perigee.

[4] Due to a slight under performance of PSLV fourth stage, IRS-1D was injected with a velocity that was 130 m/sec less than the required 7446 m/sec.

But, ISRO scientists, monitoring and controlling the satellite from ISRO Telemetry, Tracking and Command Network (ISTRAC) executed meticulously planned orbit manoeuvres to successfully put IRS-1D into a functional Sun-synchronous orbit of 740 km perigee and 817 km apogee.

Sensed data on Indian and foreign terrains will be sold through an American company (after the usual clearance by Indian military).

[4] IRS-1D completed its services on 15 January 2010 after serving for 12 years.