GOME-2 performance

The following table shows the performance information for the GOME-2 instrument.

Spectrometer type double spectrometer with pre-disperser prism and four holographic gratings
Spectral range 240 –790 nm
Field of view 0.286° (across track) x 2.75°
(along track)
Entrance slit 0.2 mm (across track) x 9.6 mm
(along track)
Channels & resolution 1: 240 – 315 nm 0.24 - 0.29 nm
2: 311 – 403 nm 0.26 – 0.28 nm
3: 401 – 600 nm 0.44 – 0.53 nm
4: 590 – 790 nm 0.44 – 0.53 nm
Polarisation monitoring unit 200 detector pixel
312 – 790 nm in 12 programmable bands
spectral resolution: 2.8 nm at 312 nm to 40 nm at 790 nm
Viewing modes +/- 960 km, +/- 480 km, +/- 360 km, +/- 240 km, +/- 120 km
Solar fixed varying angle
Lunar fixed angle (~ 6 times per year)
Spectral calibration fixed angle (once per day to once per month)
White Light Source
Dark signal
fixed angle (night side of the orbit)
Spatial resolution 40 km x 40 km (960 km swath and integration time of 0.1875 s)
40 km x 5 km (for polarisation monitoring)
Data rate 400 kbit/s (GOME-1: 40 kbit/s)
Mass 70 kg (GOME-1: 55 kg)
Power 44 W (avg) (GOME-1: 32 W)
Dimension Zenith nadir 656 mm, across-track 848 mm, velocity 468 mm

Last update: 28 June 2006

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