BackForward Satellite: SMAP 

Satellite details
Acronym SMAP
Full name Soil Moisture Active-Passive
WIGOS Station Identifier ---
Satellite Description
  • Single flight unit of the SMAP programme.
  • Main missions: Hydrology, specifically soil moisture.
Mass at launch 1122 kg Dry mass 1042 kg
Power 1351 W
Data access link
Data access information
  • Data available from NASA JPL and/or GSFC.
Orbit Sunsynchronous orbit Altitude 685 km
ECT 06:00 desc


Space agency NASA
Status Operational
Details on Status
(as available)
Launch 31 Jan 2015 EOL ≥2026
Last update: 2023-12-18
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 SMAP

Acronym Full name
SMAP Soil Moisture Active-Passive (intended as payload)
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
SMAP passive 1.4135 GHz 24 MHz Conical scanning radiometer for soil moisture