India To Enter Mars Orbit On September 24

The insertion operation will begin at 4.17 a.m. by first activating the spacecraft’s three antennas for receiving and transmitting signals between earth and Mars.

At 6.56 a.m., the spacecraft will be rotated towards Mars and five minutes later when sunlight is not falling on the Martian surface causing eclipse, the thrusters beneath the engine will give the Orbiter altitude control.

“The liquid engine will start firing at 7.17 a.m. and at 7.21 a.m., Mars occult begins. A minute later at 7.22 a.m., telemetry (radio signals) will be off or out of receiving radars on the earth,” Mr. Rao pointed out.

Scientists at the space agency’s deep space network at Byalalu, about 40 km from Bangalore, NASA’s Earth station at Goldstone on the U.S. west coast, the ESA’s Earth station at Madrid will confirm the insertion into the Martian orbit 24 minutes later at 7.54 a.m.

“Telemetry signals resume and Doppler measurements will provide first signals about the successful insertion of the spacecraft into the Martian orbit,” Mr. Rao added.

The spacecraft, with five scientific instruments, will be placed in an elliptical orbit, with the nearest distance from the Martian surface being 423 km and the furthest 80,000 km, to rotate around it in a duration equivalent to 3.2 earth days.

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