AVHRR/3

Advanced Very High Resolution Radiometer / 3

Satellites

TIROS-N, NOAA 6 to 19 - MetOp 1 to 3

Status

Operational – Utilisation period: 1978 to ~ 2014 on NOAA, 2006 to ~ 2020 on MetOp

Mission

Multi-purpose VIS/IR imagery

Instrument type

6-channel VIS/IR radiometer (channel 1.6 and 3.7 alternative)

Scanning technique

Cross-track: 2048 pixel of 800 m s.s.p., swath 2900 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 IFOV

Resources

Mass: 33 kg - Power: 27 W - Data rate: 621.3 kbps

Central wavelength

Spectral interval

Radiometric accuracy (NEΔT or SNR)

0.630 µm

0.58 - 0.68 µm

9 @ 0.5 % albedo

0.862 µm

0.725 - 1.00 µm

9 @ 0.5 % albedo

1.61 µm

1.58 - 1.64 µm

20 @ 0.5 % albedo

3.74 µm

3.55 - 3.93 µm

0.12 K @ 300 K

10.80 µm

10.3 - 11.3 µm

0.12 K @ 300 K

12.00 µm

11.5 - 12.5 µm

0.12 K @ 300 K