missions

Oceansat-3

Oceansat-3 (EOS-06) is ISRO's third ocean-colour satellite, launched on 26 November 2022 aboard PSLV-C54 into a sun-synchronous polar orbit at 723 km.^[1]^[2] The mission carries four payloads: the Ocean Colour Monitor OCM-3, the Sea Surface Temperature Monitor SSTM, the Ku-band scatterometer OSCAT-3, and an Argos-4 data-collection transponder. OCM-3 provides global ocean-colour and water-leaving radiance data, while OSCAT-3 delivers ocean surface wind vectors at 25 km resolution with a 1,800 km swath and approximately two-day repeat coverage.^[3] SSTM was designed to measure sea surface temperature but experienced a scan mechanism failure in orbit; the ISRO mission page records the overall satellite as operational while WMO OSCAR flags the SSTM instrument failure, resulting in a degraded mission classification.^[3] OCM-3 and OSCAT-3 remain operational, continuing the Oceansat programme's global ocean-monitoring heritage in support of ocean-colour retrieval, marine primary production assessment, sea surface temperature estimation, and coastal water quality studies.^[4]

Full specification

All fields

current status	Degraded
operator	Indian Space Research Organisation
launch vehicle	PSLV (Polar Satellite Launch Vehicle)
Launched	2022-11-26
planned decommission	2027-12-31
orbit type	Sun-synchronous polar orbit, 723 km
swath km	1800
revisit days	2
tasking supported	No
current geographic priority	Global ocean colour, sea-surface temperature, and ocean wind-vector observation

Supply chain position

carries instrument Ocean Color Monitor 3

carries instrument Sea Surface Temperature Monitor

carries instrument OSCAT-3 Scatterometer

carries instrument Argos-4 Data Collection System

operated by Indian Space Research Organisation

launched on PSLV (Polar Satellite Launch Vehicle)

related to Ocean surface winds

related to Marine primary production

related to Sea surface temperature

related to Coastal water quality

Ocean colour / water-leaving radiance → demonstrated Ocean Color Monitor 3

Sea-surface temperature retrieval → demonstrated Sea Surface Temperature Monitor

Thermal infrared imaging → capable Sea Surface Temperature Monitor

Radar scatterometry → demonstrated OSCAT-3 Scatterometer

Sources

[1]EOS-06 mission page, ISROagency doc2026-06-14
[2]PSLV-C54/EOS-06 Mission, ISROagency doc2026-06-14
[3]OceanSat-3 (EOS-06) satellite record, WMO OSCARthird party2026-06-14
[4]EOS-06 Composite Data Products, NRSCagency doc2026-06-14

Cite https://eo-atlas.org/missions/oceansat-3 Markdown twin → Field definitions → Suggest a correction →

How to cite this page

Plain text

Oceansat-3. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/missions/oceansat-3 (CC BY 4.0)

BibTeX

@misc{eoatlas:missions:oceansat-3,
  title = {Oceansat-3},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  note = {CC BY 4.0},
  url = {https://eo-atlas.org/missions/oceansat-3}
}