Oceansat

Last updated

Oceansat
Manufacturer ISRO
Country of originIndia
Operator ISRO
Applications Oceanographic studies
Specifications
Bus IRS
Launch mass~1,000 kg (2,200 lb)
EquipmentOcean Colour Monitor
Pencil beam scatterometer
Microwave radiometer
Radio Occultation Sounder for Atmosphere
Regime SSO
Dimensions
Production
StatusOperational
Launched4 (including 1 continuity support mission)
Operational3 (including 1 continuity support mission)
Retired1
Maiden launch Oceansat-1 (1999)
Last launch Oceansat-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 [1] as well as marine weather forecast to predict cyclones. [2]

Contents

Satellites

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. [3] Oceansat-1 was launched on board a PSLV rocket on 26 May 1999. [4]

It was capable of detecting eight spectrums ranging from 400 nm to 885 nm, all in the visible or near infrared spectrums. [5] The second, the Multi-frequency Scanning Microwave Radiometer, collects data by measuring microwave radiation passing through the atmosphere over the ocean. [6] This offers information including sea surface temperature, wind speed, cloud water content, and water vapour content. [1] [6]

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

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. [7]

A swath width of 1420 km is provided. An along-track instrument tilt capability of ±20º is provided to avoid sun glint. [8]

Satellite was launched aboard a PSLV-CA on 23 September 2009. [9]

SCATSAT-1

SCATSAT-1 was launched in 2016 [10] 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. [11]

Oceansat-3

Oceansat-3 was launched on 26 November 2022, [12] Oceansat-3 will provide continuity to operators of OCM and enhanced ability in other applications by way of simultaneous Sea Surface Temperature (SST) measurements. [13] [14] As of March 2021, ISRO and CNES completed interface control document to accommodate Argos in Oceansat-3. [15]

Launch schedule

Designation COSPAR ID NORAD ID PowerLaunch date, Time (UTC)Launch massLaunch vehicleLaunch siteStatusRemarks
Oceansat-1/IRS-P41999-029C25758750 W26 May 1999, 06:22:001,036 kg (2,284 lb) PSLV-G C2 FLP, SDSC RetiredCompleted a life a span more than double of planned.
Oceansat-2 2009-051A3593123 September 2009, 06:21960 kg (2,120 lb)PSLV-CA C14 SLP, SDSC OperationalTilt ability up to 20 degrees
SCATSAT-1 2016-059H4179026 September 2016, 03:42371 kg (818 lb) PSLV-G C35 FLP, SDSC RetiredContinuity mission after SCAT on Oceansat-2 got dysfunctional
EOS-06/Oceansat-3TBDTBD26 November 2022, 06:261,117 kg (2,463 lb) PSLV-XL C54 FLP, SDSC Operational
Oceansat-3A TBDTBDOctober 2023TBDPSLV ?? SDSC Planned

See also

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References

  1. 1 2 "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. 1 2 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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