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Orbview 2

Also called Seastar


Designation 24883 / 97037A
Launch date 1 Aug 1997
Country of origin United States
Mission Remote sensing
Perigee/Apogee 705 km (sun-synchronous)
Inclination 98.2°
Period 99 min (16 day cycle)
Launch vehicle Pegasus

Carries NASA's SeaWiFS instrument as the sensor payload, also designated "Oceans Color Data Set." The objective for global ocean coverage is desired to estimate ocean color, and to derive from these measurements, various biological indicators and other useful scientific products.

The SeaWiFS Team has developed, and will operate, a data system that will process, calibrate, validate, archive, and distribute SeaWiFS data for research. All other aspects of the mission -- satellite construction, launch, command and control and tracking -- are the responsibility of OSC. NASA has contracted with OSC to provide, for five years, the raw satellite data which will be used for research purposes. This contract is worth $43.5 million. OSC will own the data rights for operational and commercial purposes.

External resources


sat-index articles

Technical data


Prime contractor OSC
Platform Pegastar
Mass at launch 309 kg
Mass in orbit  
Solar array  
DC power  
Design lifetime 10 years

Telemetry: 1702.5 MHz (665.4 kbps)
Command: 2092.59 MHz (19.2 kbps)
Data: 2272.5 MHz (2000 kbps)


Wavebands 412 nm (20 nm bandwidth)
443 nm (20 nm bandwidth)
490 nm (20 nm bandwidth)
510 nm (20 nm bandwidth)
555 nm (20 nm bandwidth)
670 nm (20 nm bandwidth)
765 nm (40 nm bandwidth)
865 nm (40 nm bandwidth)
Swath width  
Resolution 1 km

Has a rotating scanning telescope to achieve a scan angle > 58.3°.

The SeaWiFS instrument was built by Hughes Electronics

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