SeaWiFS

Sea-viewing Wide Field-of-view Sensor

Satellite

SeaStar (now called OrbView-2)

Status

Operational – Utilised in the period 1997 to ~ 2009

Mission

Ocean colour (chlorophyll, suspended sediments, yellow matter, ...) and aerosol

Instrument type

8-channel VIS/NIR radiometer

Scanning technique

Cross-track: 2048 pixel of 800 m s.s.p., swath 2800 km - Along-track: six 1.1-km lines/s - Possibility to tilt the instrument to see aft- or fore- along track by 20 degrees to avoid sunglint

Coverage/cycle

Global coverage every day, in daylight

Resolution (s.s.p.)

1.1 IFOV

Resources

Mass: 45 kg - Power: … W - Data rate: 2 Mbps

Central wavelength

Bandwidth

Radiometric accuracy (SNR at specified input radiance)

412 nm

20 nm

499 @ 9.10 mW cm-2

443 nm

20 nm

674 @ 8.41 mW cm-2

490 nm

20 nm

667 @ 6.56 mW cm-2

510 nm

20 nm

640 @ 5.64 mW cm-2

555 nm

20 nm

596 @ 4.57 mW cm-2

670 nm

20 nm

442 @ 2.46 mW cm-2

765 nm

40 nm

455 @ 1.61 mW cm-2

865 nm

40 nm

467 @ 1.09 mW cm-2