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Oceansat

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Indian class of oceanography satellites

Oceansat
ManufacturerISRO
Country of originIndia
OperatorISRO
ApplicationsOceanographic studies
Specifications
BusIRS
Launch mass~1,000 kg (2,200 lb)
EquipmentOcean Colour Monitor
Pencil beam scatterometer
Microwave radiometer
Radio Occultation Sounder for Atmosphere
RegimeSSO
Production
StatusOperational
Launched4 (including 1 continuity support mission)
Operational3 (including 1 continuity support mission)
Retired1
Maiden launchOceansat-1 (1999)
Last launchOceansat-3 (2022)

Oceansat is a series of Earth observation satellites built, launched, and operated by Indian Space Research Organisation, and dedicated to oceanography and atmospheric studies. Oceansat satellites facilitate a range of applications including documenting chlorophyll concentration, phytoplankton blooms, atmospheric aerosols and particulate matter as well as marine weather forecast to predict cyclones.

Satellites

Oceansat-1

Main article: Oceansat-1

OceanSat-1 was the first Indian satellite built specifically for oceanographic applications. The satellite carried an Ocean Colour Monitor (OCM) and a multi-frequency scanning microwave radiometer. Oceansat-1 was launched on board a PSLV rocket on 26 May 1999.

It was capable of detecting eight spectrums ranging from 400 nm to 885 nm, all in the visible or near infrared spectrums. The second, the Multi-frequency Scanning Microwave Radiometer, collects data by measuring microwave radiation passing through the atmosphere over the ocean. This offers information including sea surface temperature, wind speed, cloud water content, and water vapour content.

Although initially launched with a lifespan of 5 years, Oceansat-1 completed its mission on August 8, 2010, after serving for 11 years and 2 months.

Oceansat-2

Main article: Oceansat-2

Oceansat-2 is designed to provide service continuity for operational users of the Ocean Colour Monitor (OCM) instrument on Oceansat-1 and enhance the potential of applications in other areas.

A swath width of 1420 km is provided. An along-track instrument tilt capability of ±20º is provided to avoid sun glint.

Satellite was launched aboard a PSLV-CA on 23 September 2009.

SCATSAT-1

Main article: SCATSAT-1

SCATSAT-1 was launched in 2016 after SCAT (Scanning scatterometer) on Oceansat-2 became dysfunctional after its life span of four-and-a-half years. SCATSAT carries a Ku-band scatterometer similar to the one on Oceansat-2.

Oceansat-3

Main article: Oceansat-3

Oceansat-3 was launched on 26 November 2022, Oceansat-3 will provide continuity to operators of OCM and enhanced ability in other applications by way of simultaneous Sea Surface Temperature (SST) measurements. As of March 2021, ISRO and CNES completed interface control document to accommodate Argos in Oceansat-3.

List of Oceansat Satellites

Designation COSPAR ID NORAD ID Power Launch date, Time (UTC) Launch mass Launch vehicle Launch site Status Remarks
Oceansat-1/IRS-P4 1999-029C 25758 750 W 26 May 1999, 06:22:00 1,036 kg (2,284 lb) PSLV-G C2 FLP, SDSC Retired Completed a life a span more than double of planned.
Oceansat-2 2009-051A 35931 23 September 2009, 06:21 960 kg (2,120 lb) PSLV-CA C14 SLP, SDSC Operational Tilt ability up to 20 degrees
SCATSAT-1 2016-059H 41790 26 September 2016, 03:42 371 kg (818 lb) PSLV-G C35 FLP, SDSC Retired Continuity mission after SCAT on Oceansat-2 got dysfunctional
Oceansat-3/EOS-06 2022-158A 54361 26 November 2022, 06:26 1,117 kg (2,463 lb) PSLV-XL C54 FLP, SDSC Operational
Oceansat-3A 2025 PSLV-XL SDSC Planned

See also

References

  1. ^ "IRS-P4 - Gunter's Space Page". Gunter's Space Page. Retrieved 9 December 2019.
  2. "To predict cyclone, ISRO to build advanced satellite". The Indian Express. 27 May 2015. Retrieved 9 December 2019.
  3. "Oceansat(IRS-P4)". Indian Space Research Organisation. 26 May 1999. Retrieved 9 December 2019.
  4. "PSLV-C2/IRS-P4". Indian Space Research Organisation. 26 May 1999. Retrieved 9 December 2019.
  5. Recent Advances In Environmental Science. Discovery Publishing House. 1 January 2003. p. 350. ISBN 978-81-7141-679-0.
  6. ^ Sastry, Hari Ram Subrahmanya; Ebenezer, D. D.; Sundaram, T. V. S. (2002). Proceedings of theInternational conference on SonarSensors of Systems, Vol. 2. Allied Publishers. p. 635. ISBN 978-81-7764-382-4.
  7. "Oceansat-2)". Indian Space Research Organisation. 23 September 2009. Archived from the original on 11 December 2019. Retrieved 9 December 2019.
  8. "Oceansat 2". Gunter's Space Page. Retrieved 9 December 2019.
  9. "PSLV-C14 / OCEANSAT-2". Indian Space Research Organisation. 23 September 2009. Retrieved 9 December 2019.
  10. "PSLV-C35 / SCATSAT-1". Indian Space Research Organisation. 26 September 2016. Retrieved 9 December 2019.
  11. "SCATSAT-1". Indian Space Research Organisation. 26 September 2016. Retrieved 9 December 2019.
  12. Chethan Kumar (6 April 2022). "gaganyaan: 2 Gaganyaan abort tests in August, December; relay satellites next year | India News - Times of India". The Times of India. Retrieved 8 April 2022.
  13. "Oceansat 3, 3A". Gunter's Space Page. Retrieved 9 December 2019.
  14. "Isro aims for 7 more launches from India in 2021". Times of India. 12 March 2021.
  15. "India, France Working On 3rd Joint Space Mission, Says ISRO Chairman". NDTV. 20 March 2021. Retrieved 21 March 2021.
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