MADRAS

Microwave Analysis & Detection of Rain & Atmospheric Structures

Satellite

Megha-Tropiques

Status

Being integrated - To be utilised in the period 2009 to ~ 2014

Mission

Contribution to the Global Precipitation Measurement mission (GPM)

Instrument type

MW radiometer with 5 frequencies / 9 channels

Scanning technique

Conical: 56° zenith angle; swath: 1740 km - Scan rate: 24.6 scan/min = 16 km/scan

Coverage/cycle

Intertropical coverage 2 to 5 times/day depending on latitude (best coverage at 15°N and 15°S)

Resolution

IFOV ranging from 7 km at 157 GHz to 50 km at 18.7 GHz

Resources

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

Central frequency (GHz)

Bandwidth (MHz)

Polarisations

Radiometric accuracy(NEΔT)

IFOV

Pixel

18.7

180

V, H

1.0 K

40 x 60 km

40 x 40 km

23.8

360

V

0.86 K

40 x 60 km

40 x 40 km

36.5

900

V, H

0.72 K

40 x 60 km

40 x 40 km

89.0

1100

V, H

1.23 K

11 x 16 km

10 x 10 km

157.0

1100

V, H

3.3 K

6 x 9 km

6 x 6 km