BackForward Satellite: TRMM 

Satellite details
Acronym TRMM
Full name Tropical Rainfall Measuring Mission
WIGOS Station Identifier ---
Satellite Description
  • Single flight unit of the TRMM programme.
  • Main mission: measurement of precipitation.
  • Substantial contribution to atmospheric radiation.
Mass at launch 3620 kg Dry mass 2730 kg
Power 850 W
Data access link
Data access information
  • Off-line data distributed by the NASA/GSFC Precipitation Processing System (PPS)
Orbit Drifting orbit Altitude 402 km
Inclination 35 °


Space agency NASAJAXA
Status Inactive
Details on Status
(as available)
  • CERES failed 9 months after launch.
  • In August 2001 the orbit was moved from the original 350 km to 402 km to extend lifetime and instrument swath.
  • VIRS functional but turned off to preserve battery.  Some intermittent operations progressively extended to the other sensors.
  • PR finally switched off on 1st April, and all other sensors on 8 April, 2015.
Launch 27 Nov 1997 EOL 08 Apr 2015
Last update: 2019-10-30
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on TRMM

Acronym Full name
CERES Clouds and the Earth’s Radiant Energy System
LIS Lightning Imaging Sensor
PR Precipitation Radar
TMI TRMM Microwave Imager
VIRS Visible and Infra Red Scanner
Show instrument status and calibration
Satellite frequencies for Earth Observation, data transfer and platform communications and control
Earth observation MW frequencies
Service Sensing mode Frequency (GHz) Bandwidth (MHz) Polarisation Comments
TMI passive 10.65 GHz 100 MHz H&V Window channel
TMI passive 19.35 GHz 500 MHz H&V Window channel
TMI passive 21.3 GHz 200 MHz V Water vapour channel
TMI passive 37 GHz 2000 MHz H&V Window channel
TMI passive 85.5 GHz 3000 MHz H&V Window channel
PR active 14 GHz - 13.5 GHz 0 MHz - Ku-band precipitation radar