Instrument Specification:



WAVEBANDS

   With and without quartz filter: 0.32 um - 4.0 um, 0.32 um - 30 um
   By subtraction: 4.0 um - 30 um

RADIOMETRY

   Shortwave:

  • Absolute accuracy (each pixel, excluding noise): < 2.4 Wm-2ster-1 (ie <1%)
  • Noise (each pixel, 15 minute averaging): < 0.8 Wm-2ster-1
  • Dynamic range: 0-380 Wm-2ster-1
  • Full Scale Radiance: 240 Wm-2ster-1
  • Signal/noise (each pixel, 15 minute averaging): 1250
  • Noise equivalent radiance: 0.8 Wm-2ster-1

   Longwave:

  • Absolute accuracy (each pixel, excluding noise): < 0.4 Wm-2ster-1 (ie <0.5%)
  • Noise (each pixel, 15 minute averaging): < 0.15 Wm-2ster-1
  • Dynamic range: 0-90 Wm-2ster-1
  • Full Scale Radiance: 77 Wm-2ster-1
  • Signal/noise (each pixel, 15 minute averaging): 400
  • Noise equivalent radiance: 0.15 Wm-2ster-1
PIXEL SIZE: 44.6 x 39.3 km (NS x EW) at nadir
CYCLE TIME: Full Earth disc, both channels in 5 min
CO-REGISTRATION:

   Spatial: 3 km wrt SEVIRI at satellite sub-point

   Temporal: Within 15 min of SEVIRI at each pixel

SPECTRAL & MTF: Performance specified by templates
INSTRUMENT MASS: 25 kg
DATA RATE: 50.6 kbits/sec (L Band)
POWER: 35 W



Home

SSTD HOMEPAGE CLRC HOMEPAGE