BBR

Broad-Band Radiometer

Satellite

Earth-CARE

Status

Being developed – To be utilised in the period 2012 to ~ 2015

Mission

Earth radiation budget in support of the main Earth-CARE instruments (ATLID and CPR, both nadir-pointing)

Instrument type

Two broad-band channels radiometer. Three telescopes, one for each of three views

Scanning technique

Three along-track views: nadir, fore- and aft- (± 55° zenith angle)

Coverage/cycle

Global coverage in 16 d for cells of 100 km side

Resolution

10 km (constant for all three views)

Resources

Mass: 27 kg - Power: 43 W - Data rate: 50 kbps

Channel

Spectral interval

Noise Equivalent Radiance

Absolute accuracy

SNR

Short-wave (outgoing)

0.2 - 3.8 µm

…. W m-2 sr-1

2.0 W m-2 sr-1

….

Total radiance (outgoing)

0.2 - 50 µm

…. W m-2 sr-1

1.5 W m-2 sr-1

….