MVISR

Multichannel Visible Infrared Scanning Radiometer

Satellites

FY-1 A to D

Status

Operational – Utilised in the period: 1988 to ~ 2008

Mission

Multi-purpose VIS/IR imagery with emphasis on vegetation and ocean colour

Instrument type

10-channel VIS/IR radiometer

Scanning technique

Cross-track: 2048 pixel of 800 m s.s.p., swath 2800 km - Along-track: six 1.1-km lines/s

Coverage/cycle

Global coverage twice/day (IR) or once/day (VIS)

Resolution (s.s.p.)

1.1 km

Resources

Mass: 55 kg - Power: 45 W - Data rate: 1.23 Mbps

Central wavelength

Spectral interval

Radiometric accuracy (SNR or NEΔT)

0.455 µm

0.43 - 0.48 µm

3.0 @ 0.5 % albedo

0.505 µm

0.48 - 0.53 µm

3.0 @ 0.5 % albedo

0.555 µm

0.53 - 0.58 µm

3.0 @ 0.5 % albedo

0.630 µm

0.58 - 0.68 µm

3.0 @ 0.5 % albedo

0.865 µm

0.84 - 0.89 µm

3.0 @ 0.5 % albedo

0.932 µm

0.90 - 0.965 µm

3.0 @ 0.5 % albedo

1.600 µm

1.55 - 1.64 µm

3.0 @ 0.5 % albedo

3.740 µm

3.55 - 3.93 µm

0.40 K @ 300 K

10.80 µm

10.3 - 11.3 µm

0.22 K @ 300 K

12.00 µm

11.5 - 12.5 µm

0.22 K @ 300 K