Stage set for ISRO’s maiden SSLV mission tomorrow

Insight Online News

Chennai, Aug 6 : The Indian Space programme will herald yet another

milestone when the maiden flight of the Small Satellite Launch Vehicle

(SSLV), which will ferry Earth Observation Satellite-2 (EOS-2) and a

co-passenger satellite AzaadiSAT into a Low Earth Orbit, will take place

tomorrow from the spaceport of Sriharikota.

The Indian Space Reserach Organisation (ISRO) today said the launch of

SSLV-D1 (first developmental flight) carrying the 142 kg EOS-02, equipped

with an infrared camera with six metre resolution, and a micro satellite will

take place from the First Launch Pad at the Satish Dhawan Space Centre

(SDSC), SHAR Range, Sriharikota, at 0918 hrs.

The countdown for the SSLV-D1/EOS-02 mission will commence about

six-and-half- hours before the lift off, ISRO sources said.

During the countdown, propellant filling operations will be carried out

in the 34 m tall, three-stage vehicle (all solid propulsion stages), which

has a lift off mass of 120 tonnes, and all the rocket and satellite systems

will be checked.

The satellite insertion into the intended orbit will be achieved through a

liquid propulsion-based Velocity Trimming Module (VTM).

During the nearly 13 minute flight duration, the rocket will coast (will not

be powered by engines), twice for about four minutes during the

separation of the second and third stage and maintain its velocity using

the thrust developed from the lift off.

About 742 seconds after the lift off, SSLV will inject the EOS-2 at an altitude

of 356.30 km with an inclination of 37.21 deg to the equator. It will be followed

by the separation and injection of AzaadiSAT about 50 seconds later.

SSLV is the new launch vehicle of ISRO capable of launching Mini, Micro or

Nano satellites (10 to 500 kg mass) to 500 km planar orbit.

The design drivers of SSLV are low cost, low turnaround time, flexibility in

accommodating multiple satellites, launch-on-demand feasibility, minimal

launch infrastructure requirements etc.,


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