WMO OSCAR | Satellite: Envisat

Satellite: Envisat

Satellite details

Acronym	Envisat
Full name	Environmental Satellite
WIGOS Station Identifier	---
Satellite Description	Single flight unit of the Envisat programme. Main missions: atmospheric chemistry, climatology, ocean and ice. Substantial contribution to land observation.
Mass at launch	8140 kg	Dry mass	7821 kg
Power	6500 W
Data access link	no link provided
Data access information	Most products available from the PACs (UK-PAC, D-PAC, I-PAC, F-PAC, S-PAC and E-PAC). Several products available in Near-Real-Time. For details, see https://earth.esa.int/browse-data-products.
Orbit	Sunsynchronous orbit	Altitude	774 km
ECT	10:00 desc

Space agency	ESA
Status	Inactive
Details on Status (as available)	All instruments except GOMOS, failed in mid-2011, were operational, with a variable degree of degradation, till the EOL.
Launch	01 Mar 2002	EOL	08 Apr 2012
Last update:	2019-10-29

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 Envisat

Acronym	Full name
AATSR	Advanced Along-Track Scanning Radiometer
ASAR	Advanced Synthetic Aperture Radar
DORIS	Doppler Orbitography and Radiopositioning Integrated by Satellite
GOMOS	Global Ozone Monitoring by Occultation of Stars
LRR	Laser Retro-Reflector
MERIS	Medium Resolution Imaging Spectrometer
MIPAS	Michelson Interferometer for Passive Atmospheric Sounding
MWR	Micro-Wave Radiometer
RA-2	Radar Altimeter - 2
SCIAMACHY-limb	Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (limb-scanning component)
SCIAMACHY-nadir	Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (nadir-scanning component)

Satellite payload

All known instruments flying on Envisat

Instrument	Full name	Start date	EOL date	Status	Comments
AATSR	Advanced Along-Track Scanning Radiometer	Jun 2002 *	08 Apr 2012	N/A
ASAR	Advanced Synthetic Aperture Radar	Jun 2002 *	08 Apr 2012	N/A
DORIS	Doppler Orbitography and Radiopositioning Integrated by Satellite	Jun 2002 *	08 Apr 2012	N/A
GOMOS	Global Ozone Monitoring by Occultation of Stars	Jun 2002 *	Aug 2011	N/A	GOMOS failed in August 2011
LRR	Laser Retro-Reflector	Jun 2002 *	08 Apr 2012	N/A
MERIS	Medium Resolution Imaging Spectrometer	Jun 2002 *	08 Apr 2012	N/A
MIPAS	Michelson Interferometer for Passive Atmospheric Sounding	Jun 2002 *	08 Apr 2012	N/A
MWR	Micro-Wave Radiometer	Jun 2002 *	08 Apr 2012	N/A
RA-2	Radar Altimeter - 2	Jun 2002 *	08 Apr 2012	N/A
SCIAMACHY-limb	Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (limb-scanning component)	Jun 2002 *	08 Apr 2012	N/A
SCIAMACHY-nadir	Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (nadir-scanning component)	Jun 2002 *	08 Apr 2012	N/A

* The information in this field is estimated or assumed

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
RA-2	active	3 GHz - 3.2 GHz	0 MHz	-	S-band radar altimeter
RA-2	active	14 GHz - 13.6 GHz	0 MHz	-	Ku-band radar altimeter
MWR	passive	23.8 GHz	650 MHz	-	Water vapour channel (supporting altimeter)
MWR	passive	36.5 GHz	650 MHz	-	Window channel (supporting altimeter)
ASAR	active	5 GHz - 5.331 GHz	0 MHz	-	C-band SAR