SOUNDER

INSAT Sounder

Satellites

INSAT-3D

Status

Close to launch – To be utilised in the period 2008 to ~ 2015

Mission

Temperature/humidity sounding

Instrument type

19-channel IR radiometer (including one VIS)

Coverage/cycle

6000 km x 6000 km in 3 h. Smaller areas in correspondingly shorter time intervals

Resolution (s.s.p.)

10.0 km

Resources

Mass: … kg - Power: … W - Data rate: … kbps

Wavelength

Wave number

Bandwidth

Radiometric accuracy (SNR or NEΔT)

14.71 µm

680 cm-1

13 cm-1

1.50 K @ 320 K

14.37 µm

696 cm-1

13 cm-1

1.00 K @ 320 K

14.06 µm

711 cm-1

13 cm-1

0.50 K @ 320 K

13.96 µm

716 cm-1

16 cm-1

0.50 K @ 320 K

13.37 µm

748 cm-1

16 cm-1

0.50 K @ 320 K

12.66 µm

790 cm-1

30 cm-1

0.30 K @ 320 K

12.02 µm

832 cm-1

50 cm-1

0.15 K @ 320 K

11.03 µm

907 cm-1

50 cm-1

0.15 K @ 320 K

9.71 µm

1030 cm-1

25 cm-1

0.20 K @ 320 K

7.43 µm

1345 cm-1

55 cm-1

0.20 K @ 320 K

7.02 µm

1425 cm-1

80 cm-1

0.20 K @ 320 K

6.51 µm

1535 cm-1

60 cm-1

0.20 K @ 320 K

4.57 µm

2188 cm-1

23 cm-1

0.15 K @ 320 K

4.52 µm

2210 cm-1

23 cm-1

0.15 K @ 320 K

4.45 µm

2248 cm-1

23 cm-1

0.15 K @ 320 K

4.13 µm

2420 cm-1

40 cm-1

0.15 K @ 320 K

3.98 µm

2513 cm-1

40 cm-1

0.15 K @ 320 K

3.74 µm

2671 cm-1

100 cm-1

0.15 K @ 320 K

0.695 µm

N/A

0.05 µm

1000 @ 100 % albedo