# BILSAT-1
*missions*

## Specifications
- **operator**: tubitak-uzay
- **platform**: sstl-100
- **launch vehicle**: roscosmos-kosmos-3m
- **actual launch**: 2003-09-27
- **actual end of life**: 2006-08-01
- **current status**: ended
- **orbit type**: Sun-synchronous, about 676 x 693 km, 98.20 deg
- **tasking supported**: false
- **current geographic priority**: DMC disaster-monitoring and Turkish civil Earth-observation applications
- **entity type**: mission
- **last verified date**: 2026-06-21
- **verified by**: community
- **claim status**: agency-sourced
- **provider**: tubitak-uzay
- **attributes**: {"operator":"tubitak-uzay","platform":"sstl-100","launch_vehicle":"roscosmos-kosmos-3m","actual_launch":"2003-09-27","actual_end_of_life":"2006-08-01","current_status":"ended","orbit_type":"Sun-synchronous, about 676 x 693 km, 98.20 deg","tasking_supported":false,"current_geographic_priority":"DMC disaster-monitoring and Turkish civil Earth-observation applications"}
- **relevance**: in-scope

## Editorial
BILSAT-1 was Turkey's Disaster Monitoring Constellation Earth-observation microsatellite, operated by TUBITAK-ODTU-BILTEN / TUBITAK UZAY.[^gunter-bilsat-1][^sstl-bilsat-1] It launched on 2003-09-27 from Plesetsk on Kosmos-3M with other DMC and rideshare spacecraft.[^gunter-bilsat-1] The mission used a modified SSTL Microsat-100 / SSTL-100 class platform.[^gunter-bilsat-1] Its payload suite included COBAN, a low-resolution multispectral imager, and GEZGIN, a DSP-based JPEG2000 image-processing module built by BILTEN engineers.[^gunter-bilsat-1] BILSAT-1 demonstrated onboard JPEG2000 image processing alongside DMC-era wide-area multispectral monitoring.[^gunter-bilsat-1][^sstl-bilsat-1]

## Compositional position
- BILSAT-1 --[mission_payloads]--> bilsat-coban (products)
- BILSAT-1 --[mission_buses]--> sstl-100 (products)
- BILSAT-1 --[related]--> gezgin (products)
- BILSAT-1 --[related-topic]--> disaster-damage-assessment (topics)
- BILSAT-1 --[related-topic]--> land-cover-change (topics)
- BILSAT-1 --[related-topic]--> urban-change (topics)

## Sources
- [gunter-bilsat-1] | Bilsat 1, Gunter's Space Page | https://space.skyrocket.de/doc_sdat/bilsat-1.htm | tier=community | accessed=2026-06-21
- [sstl-bilsat-1] | BILSAT-1 mission, Surrey Satellite Technology Ltd | http://www.sstl.co.uk/Missions/BILSAT-1--Launched-2003/BILSAT-1/BILSAT-1--The-Mission | tier=operator-engineering | accessed=2026-06-21
  Legacy operator/manufacturer mission URL referenced by Gunter's Space Page; current site may require archive recovery.

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Source: https://eo-atlas.org/missions/bilsat-1
Maintainer: SpectraWorks B.V. (CC-BY 4.0)