Earth Observation Satellite-01
Mission typeRadar imaging
Earth observation satellite
COSPAR ID2020-081A Edit this at Wikidata
SATCAT no.46905
Mission duration5 years (planned)
2 years, 9 months and 12 days (in progress)
Spacecraft properties
ManufacturerIndian Space Research Organisation
Launch mass615 kg (1,356 lb)
Power2 kW[1]
Start of mission
Launch date7 November 2020, 09:41 UTC[2]
Launch siteSatish Dhawan Space Centre, First Launch Pad (FLP)
ContractorIndian Space Research Organisation
Entered serviceFebruary 2021
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Altitude555 km (345 mi)
Period90.0 minutes
Synthetic Aperture Radar (X-band) (SAR-X)

EOS-01 (formerly known as RISAT-2BR2 [3]) is an X-band, synthetic-aperture radar (SAR) based all weather Earth imaging satellite built by the Indian Space Research Organisation (ISRO) for tasks pertaining to forestry, agricultural and disaster management.[4] It is a part of India's RISAT series of SAR imaging spacecraft and would be third satellite in the series including RISAT-2B, RISAT-2BR1 with 120° phasing.[5] EOS-01 has been developed at the cost of roughly 125 crore (equivalent to 147 crore or US$18 million in 2023).[6]


EOS-1 (RISAT-2BR2) has been launched on board a PSLV-DL PSLV-C49 launch vehicle on 7 November 2020 along with 9 foreign satellites. The satellite was although earlier scheduled for first half of 2020, impact of COVID-19 pandemic in India affected ISRO's activities and delayed a number of programs by months and it was first launch mission of ISRO in 2020. Due to fears of infections amid pandemic, gathering of staff and media were dismissed for this launch.[7]

As per reports on 29 October 2020, RISAT-2BR2 was renamed as "EOS-01" per new naming criteria adopted by ISRO.[8][9]

See also


  1. ^ "Indian PSLV deploys 10 satellites in first launch since start of pandemic". Spaceflight Now. 7 November 2020. Retrieved 7 November 2020.
  2. ^ "PSLV successfully launches EOS-01 and nine customer satellites from Sriharikota". ISRO. 7 November 2020. Archived from the original on 21 November 2020. Retrieved 7 November 2020.
  3. ^ "ISRO adopts new satellite naming style, RISAT-2BR2, now EOS-01". Deccan News. 29 October 2020. Retrieved 29 October 2020 – via Indo Asian News Service.
  4. ^ "PSLV-C49/EOS-01". Indian Space Research Organisation. Archived from the original on 29 October 2020. Retrieved 29 October 2020.
  5. ^ "Department of Space, Annual Report 2019-20" (PDF). isro.gov.in. 14 February 2020. Archived (PDF) from the original on 14 February 2020. Retrieved 6 November 2020.
  6. ^ "పీఎస్‌ఎల్‌వీ-సీ49కు ప్రారంభమైన కౌంట్‌డౌన్‌". m.eenadu.net (in Telugu). Retrieved 6 November 2020.
  7. ^ Surendra Singh (28 October 2020). "ISRO will launch first satellite of this year from Sriharikota on 7 November 2020". The Times of India. New Delhi. Retrieved 29 October 2020.
  8. ^ "इसरो ने बदला सेटेलाइट के नामकरण का तरीका, जनिए अब कैसे रखा जाएगा नाम" [ISRO has changed the way to name the satellite, how will the name be named now]. jagran.com (in Hindi). Jagran. Retrieved 16 May 2021.
  9. ^ "ISRO adopts new satellite naming style, RISAT-2BR2 now EOS-01". telanganatoday.com. 29 October 2020. Retrieved 7 November 2020.