# Oceansat-3
*missions*

## Specifications
- **operator**: isro
- **actual launch**: 2022-11-26
- **planned decommission**: 2027-12-31
- **current status**: degraded
- **orbit type**: Sun-synchronous polar orbit, 723 km
- **swath km**: 1800
- **revisit days**: 2
- **tasking supported**: false
- **current geographic priority**: Global ocean colour, sea-surface temperature, and ocean wind-vector observation
- **launch vehicle**: isro-pslv
- **entity type**: mission
- **last verified date**: 2026-06-14
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: isro
- **attributes**: {"operator":"isro","actual_launch":"2022-11-26","planned_decommission":"2027-12-31","current_status":"degraded","orbit_type":"Sun-synchronous polar orbit, 723 km","swath_km":1800,"revisit_days":2,"tasking_supported":false,"current_geographic_priority":"Global ocean colour, sea-surface temperature, and ocean wind-vector observation","launch_vehicle":"isro-pslv"}
- **relevance**: in-scope

## Editorial
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.[^isro-eos-06][^isro-pslv-c54] 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.[^wmo-oceansat-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.[^wmo-oceansat-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.[^nrsc-eos-06-composites]

## Compositional position
- Oceansat-3 --[mission_payloads]--> ocm-3 (products)
- Oceansat-3 --[mission_payloads]--> sstm (products)
- Oceansat-3 --[mission_payloads]--> oscat-3 (products)
- Oceansat-3 --[mission_payloads]--> argos-4 (products)
- Oceansat-3 --[related-topic]--> ocean-surface-winds (topics)
- Oceansat-3 --[related-topic]--> marine-primary-production (topics)
- Oceansat-3 --[related-topic]--> sea-surface-temperature (topics)
- Oceansat-3 --[related-topic]--> coastal-water-quality (topics)

## Sources
- [isro-eos-06] | EOS-06 mission page, ISRO | https://www.isro.gov.in/EOS_06.html | tier=agency-doc | accessed=2026-06-14
- [isro-pslv-c54] | PSLV-C54/EOS-06 Mission, ISRO | https://www.isro.gov.in/mission_PSLV_C54.html | tier=agency-doc | accessed=2026-06-14
- [wmo-oceansat-3] | OceanSat-3 (EOS-06) satellite record, WMO OSCAR | https://space.oscar.wmo.int/satellites/view/oceansat_3_eos_06 | tier=third-party | accessed=2026-06-14
- [nrsc-eos-06-composites] | EOS-06 Composite Data Products, NRSC | https://bhoonidhi.nrsc.gov.in/bhoonidhi_resources/help/UIM2024/10-UIM2024_EOS-06_Composite_Products.pdf | tier=agency-doc | accessed=2026-06-14

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Source: https://eo-atlas.org/missions/oceansat-3
Maintainer: SpectraWorks B.V. (CC-BY 4.0)