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 |
