PSLV-C2

PSLV-C2

PSLV-C2

1999 Indian space launch mission

PSLV-C2 was the second operational launch and overall fifth mission of the Polar Satellite Launch Vehicle (PSLV) program. This launch was also the forty-third launch by Indian Space Research Organisation (ISRO) 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 US$1.0 million (equivalent to $1.83 million in 2023) to ISRO for launching their satellites.[5][6]

Quick Facts Names, Mission type ...

Mission parameters

  • Mass:
    • Total liftoff weight: 294,000 kg (648,000 lb)
    • Payload weight: 1,202 kg (2,650 lb)
  • Overall height: 44.4 m (146 ft)
  • Propellant:
    • First stage: Solid HTPB based (138.0 + 54 tonnes)
    • Second stage: Liquid UDMH + N2O4 (4.06 tonnes)
    • Third stage: Solid HTPB based (7.2 tonnes)
    • Fourth stage: Liquid MMH + N2O4 (2.0 tonnes)
  • Engine:
    • First stage: S139
    • Second stage: Vikas
    • Third stage:
    • Fourth stage: 2 x PS-4
  • Thrust:
    • First stage: 4628 + 662 x 6 kN
    • Second stage: 725 kN
    • Third stage: 340 kN
    • Fourth stage: 7.2 x 2 kN
  • Altitude: 735.1 km (456.8 mi)
  • Maximum velocity: 7,490 m/s (24,600 ft/s) (recorded at time of fourth stage ignition)
  • Duration: 1117.5 seconds [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]

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Launch and planned flight profile

Heat shield of PSLV displayed at HAL heritage center.

PSLV-C2 was launched at 06:22 UTC 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 (452 mi). The actual perigee was 723.1 km, apogee was 735.1 km. Following was the planned flight profile.[1][2][3][4][5][7]

More information Stage, Time (seconds) ...

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

  1. [1]
    "PSLV-C2". Indian Space Research Organisation. Retrieved 9 July 2016.
  2. [2]
    "Space Launch Report: PSLV". Space Launch Report. Archived from the original on 4 January 2013. Retrieved 9 July 2016.{{cite news}}: CS1 maint: unfit URL (link)
  3. [3]
    "ISRO timeline since 1960s". Indian Space Research Organisation. Retrieved 9 July 2016.
  4. [4]
    "PSLV-C2 mission". iisc.ernet.in. Retrieved 9 July 2016.
  5. [5]
    "The science and commerce of PSLV". Frontline (magazine). Retrieved 9 July 2016.
  6. [6]
    "PSLV Successfully Launches Three Satellites". Press Information Bureau. Retrieved 9 July 2016.
  7. [7]
    "PSLV-C2 brochure" (PDF). Indian Space Research Organisation. Retrieved 9 July 2016.
  8. [8]
    "Korea Institute of Technology Satellite-3". eoportal.org. Retrieved 9 July 2016.
  9. [9]
    "TUBSAT (Technical University of Berlin Satellite) Program". eoportal.org. Retrieved 9 July 2016.
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