PSLV-C2

PSLV-C2

Model of the PSLV rocket
Mission type Deployment of three satellites.
Operator ISRO
Website ISRO website
Mission duration 1117.5 seconds
Apogee 735.1 kilometres (457 mi)
Spacecraft properties
Spacecraft Polar Satellite Launch Vehicle
Spacecraft type Expendable launch vehicle
Manufacturer ISRO
Launch mass 294,000 kilograms (648,000 lb)
Payload mass 1,202 kilograms (2,650 lb)
Start of mission
Launch date 11:52:00, May 26, 1999 (1999-05-26T11:52:00) (IST)
Rocket Polar Satellite Launch Vehicle
Launch site Sriharikota Launching Range
Contractor ISRO
End of mission
Disposal Placed in graveyard orbit
Deactivated 26 May 1999
Orbital parameters
Reference system Sun-synchronous
Regime Low Earth orbit
Payload
Oceansat-1
Kitsat-3
DLR-Tubsat
Polar Satellite Launch Vehicle missions
← PSLV-C1 PSLV-C3 →

PSLV-C2 was the second operational launch and overall fifth mission of the PSLV program. This launch was also the forty-third launch by Indian Space Research Organisation since its first mission on 1 January 1962. The vehicle carried three satellites which were deployed in the Sun-synchronous low Earth orbit.[1][2][3][4][5] The vehicle carried India's first remote sensing satellite Oceansat-1 (IRS-P4) as the main payload. It also carried South Korean satellite Kitsat-3 and German satellite DLR-Tubsat as auxiliary payloads.[1] PSLV-C2 was the first Indian Expendable launch vehicle to carry and deploy more than one satellite in a mission. This was also India's and ISRO's first commercial spaceflight where South Korea and Germany each paid $1.0 million (equivalent to $1.42 million in 2015) to ISRO for launching their satellites.[5][6]

Mission parameters

[1][7]

Payload

PSLV-C2 carried and deployed total three satellites. Oceansat-1 (IRS-P4) was the main payload and Kitsat-3 and DLR-Tubsat were two auxiliary payloads that were mounted on PSLV-C2 equipment bay diametrically opposite to each other. Oceansat-1, was mounted on top of the equipment bay. In the flight sequence, IRS-P4 was injected first, followed by Kitsat-3 and then DLR-Tubsat.[1][8][9]

Country Name Nos Mass Type Objective
India India Oceansat-1 1 1,050 kg Indian Remote Sensing Satellite Remote sensing
South Korea South Korea Kitsat-3 1 107 kg Microsatellite Test & demonstrate new satellite bus & its payloads
Germany Germany DLR-Tubsat 1 45 kg Microsatellite Test newly developed attitude control system

Launch & planned flight profile

Heat shield of PSLV displayed at HAL heritage center.

PSLV-C2 was launched at 11:52 a.m. IST on 26 May 1999 from Satish Dhawan Space Centre (then called "Sriharikota Launching Range"). The mission was planned with pre-flight prediction of perigee and apogee of 727 km (±35 km). The actual perigee was 723.1 km, apogee was 735.1 km. Following was the planned flight profile.[1][2][3][4][5][7]

Stage Time
(seconds)		 Altitude
(kilometer) 		Velocity
(meter/sec) 		Event Remarks
First stage T+0 0.02 450 First stage ignition Lift-off
T+1.2 0.02 450 Ignition of 4 ground-lit strap-on motors
T+25.1 2.43 540 Ignition of 2 air-lit strap-on motors
T+68.1 23.10 1,100 Separation of 4 ground-lit strap-on motors
T+90.1 40.21 1,520 Separation of 2 air-lit strap-on motors
T+117.7 72.08 1,970 First stage separation
Second stage T+117.9 72.38 1,970 Second stage ignition
T+162.7 120.71 2,210 Heat shield separation
T+167.7 126.60 2,260 Closed-loop guidance initiation
T+284.5 254.03 4,070 Second stage separation
Third stage T+285.7 255.46 4,060 Third stage ignition
T+506.4 533.57 5,970 Third stage separation
Fourth stage T+584.4 605.44 5,870 Fourth stage ignition
T+991.7 728.25 7,490 Fourth stage thrust cut-off
T+1017.5 728.66 7,490 Oceansat-1 (IRS-P4) separation
T+1067.5 729.51 7,490 Kitsat-3 separation
T+1117.5 730.41 7,490 DLR-Tubsat separation

The launch was witnessed by Atal Bihari Vajpayee (then Prime Minister of India), Murli Manohar Joshi, Vasundhara Raje and N. Chandrababu Naidu.[6]

See also

References

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