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EOS-04

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EOS-04
EOS-04 Satellite
NamesRadar Imaging Satellite-1A
Mission typeImaging radar
OperatorISRO
COSPAR ID2022-013AEdit this at Wikidata
SATCATno.51656
Websitewww.isro.gov.in/launcher/pslv-c52-eos-04-mission
Mission duration10 years (planned)[1]
2 years, 7 months, 19 days(in progress)
Spacecraft properties
SpacecraftEOS-04
ManufacturerIndian Space Research Organisation
Launch mass1,710 kg (3,770 lb)[1]
Power2280watts[1]
Start of mission
Launch date14 February 2022, 00:29UTC
RocketPSLV-C52
Launch siteSatish Dhawan Space Centre,First Launch Pad (FLP)
ContractorIndian Space Research Organisation
Orbital parameters
Reference systemGeocentric orbit[2]
RegimeSun-synchronous orbit
Perigee altitude526.7 km (327.3 mi)
Apogee altitude543.4 km (337.7 mi)
Inclination97.6°
Period95.2 minutes
Instruments
Synthetic Aperture Radar(C-band) (SAR-C)

EOS-04orEarth Observation Satellite - 04(formerly known as RISAT-1A) is anIndian Space Research OrganisationRadar Imaging Satellitedesigned to provide high-quality images under all weather conditions for applications such as Agriculture, Forestry & Plantations, Soil Moisture & Hydrology and Flood mapping.[3][4]It is a follow on toRISAT-1satellite with similar configuration. The satellite is developed by the ISRO and it is the sixth in a series ofRISATsatellites.

Satellite description

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Synthetic aperture radar can be used forEarth observationirrespective of the light and weather conditions of the area being imaged.[5]It complements/supplements data fromResourcesat,CartosatandRISAT-2BSeries.[6]The satellite carries aC-bandsynthetic-aperture radar(SAR) and has a liftoff mass of 1,710 kg (3,770 lb).[2]The EOS-04 orbit is polar and Sun-synchronous at 06:00 AM LTDN, at approximate altitude of 529 km.[7]

Assembly Integration and Testing of spacecraft was done by a consortium led by Alpha Design Technologies Ltd.[8]Approximate cost of EOS-04 is₹490 crore(equivalent to₹550 crore or US$66 million in 2023).[9][10]

Launch

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EOS-04 was launched on thePolar Satellite Launch Vehicle(PSLV-C52) from First Launch Pad(FLP),SDSC, SHAR,Sriharikota at 05:59 hrsIST(00:29 hrsUTC) on 14 February 2022.[6][11][12]It was launched along with tworidesharing satellites,INS-2TD a technology demonstrator by ISRO and INSPIREsat-1 a university satellite.[11]

EOS-04 captured first images on 25 February 2022 after launch.[13]

See also

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References

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  1. ^abc"PSLV-C52/EOS-04 Mission"(PDF).Archived fromthe original(PDF)on 9 February 2022.Retrieved9 February2022.
  2. ^ab"PSLV-C52/EOS-04 Mission".ISRO. Archived fromthe originalon 9 February 2022.Retrieved9 February2022.
  3. ^"EOS-04 - ISRO".isro.gov.in.Archived fromthe originalon 20 March 2022.Retrieved17 February2022.
  4. ^"CEOS Instrument: Synthetic Aperature Radiometer (RISAT)".Archived fromthe originalon 9 February 2017.Retrieved9 February2016.
  5. ^Raj, N. Gopal (25 April 2012)."RISAT-1's radar can see through clouds and work in darkness".The Hindu.Chennai, India.
  6. ^ab"PSLV-C52/EOS-04 Brochure - ISRO".isro.gov.in.Archived fromthe originalon 9 February 2022.Retrieved17 February2022.
  7. ^Reddy, O.V. Raghav (3 February 2016)."Future Earth Observation Missions of ISRO, NRSC User Interaction Meet 2016"(PDF).Archived fromthe original(PDF)on 3 February 2017.
  8. ^Chethan Kumar (15 February 2022)."isro: Consortium led by Adani-backed firm assembled, integrated and tested Isro's earth observation satellite | India News - Times of India".The Times of India.Retrieved15 February2022.
  9. ^"Lok Sabha Unstarred Question No. 4446, Observation Satellite EOS-4"(PDF).30 March 2022.The total time taken to realize the satellite is 63 months from date of financial sanction and the expenditure towards realization of satellite is nearly Rs. 490 crore.
  10. ^Kumar, Chethan (1 December 2021)."Teething troubles with indigenous tech cause for delay in 2 Sat launches; humidity halts SSLV - Times of India".The Times of India.Retrieved15 February2022.
  11. ^ab"Successful launch of PSLV-C52 with EOS-04 Satellite - ISRO".isro.gov.in.Archived fromthe originalon 17 February 2022.Retrieved15 February2022.
  12. ^"14న పీఎస్ఎల్వీ ప్రయోగం".EENADU(in Telugu).Retrieved28 January2022.
  13. ^"EOS-04, INS-2TD and INSPIRESat-1: Update - ISRO".isro.gov.in.Archived fromthe originalon 26 March 2022.Retrieved30 March2022.


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