Gurushivam at 19:19, 9 December 2025

2025-12-09T19:19:23Z

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{{Short description|Indian Earth observation satellite}}
{{Use Indian English|date=October 2020}}
{{Use dmy dates|date=October 2020}}
{{Infobox spaceflight
| name = EOS-01
| names_list = RISAT-2BR2<br/>[[Earth observation satellite|Earth Observation Satellite-01]]
| image =
| image_caption =
| image_size = 300px

| mission_type = [[Radar imaging]]<br/>[[Earth observation satellite]]
| operator = [[Indian Space Research Organisation|ISRO]]
| COSPAR_ID = 2020-081A
| SATCAT = 46905
| website = https://www.isro.gov.in
| mission_duration = 5 years (planned)<br/>{{time interval|7 November 2020|show=ymd}} ''(in progress)''

| spacecraft = EOS-01
| spacecraft_type =
| spacecraft_bus = [[RISAT]]
| manufacturer = [[Indian Space Research Organisation]]
| launch_mass = {{cvt|615|kg}}
| dimensions =
| power = 2 [[Watt|kW]]<ref name="SFN20201107">{{cite news|url=https://spaceflightnow.com/2020/11/07/indian-pslv-deploys-10-satellites-in-first-launch-since-start-of-pandemic/|title=Indian PSLV deploys 10 satellites in first launch since start of pandemic|publisher=Spaceflight Now|date=7 November 2020|access-date=7 November 2020}}</ref>

| launch_date = 7 November 2020, 09:41 [[Coordinated Universal Time|UTC]]<ref name="DOS_PR_20201107">{{cite web|title=PSLV successfully launches EOS-01 and nine customer satellites from Sriharikota|url=https://www.isro.gov.in/update/07-nov-2020/pslv-successfully-launches-eos-01-and-nine-customer-satellites-sriharikota|publisher=ISRO|date=7 November 2020|access-date=7 November 2020|archive-date=21 November 2020|archive-url=https://web.archive.org/web/20201121095436/https://www.isro.gov.in/update/07-nov-2020/pslv-successfully-launches-eos-01-and-nine-customer-satellites-sriharikota|url-status=dead}}</ref>
| launch_rocket = [[Polar Satellite Launch Vehicle|PSLV-DL]], [[PSLV-C49]]
| launch_site = [[Satish Dhawan Space Centre]], [[Satish Dhawan Space Centre|First Launch Pad (FLP)]]
| launch_contractor = [[Indian Space Research Organisation]]

| entered_service = February 2021
| disposal_type =
| deactivated =
| last_contact =

| orbit_reference = [[Geocentric orbit]]
| orbit_regime = [[Low Earth orbit]]
| orbit_altitude = {{cvt|555|km}}
| orbit_inclination = 36.9°
| orbit_period = 90.0 minutes
| apsis = gee

| instruments = [[Synthetic-aperture radar|Synthetic Aperture Radar]] ([[X band|X-band]]) (SAR-X)
| programme = '''[[Indian Remote Sensing Programme|EOS series]]'''
| previous_mission =
| next_mission = [[GISAT|EOS-03]]
| programme2 = [[RISAT|RISAT series]]
| previous_mission2 = [[RISAT-2BR1]]
| next_mission2 = [[EOS-04|RISAT-1A]]
}}

'''EOS-01''' (formerly known as ''RISAT-2BR2''<ref name="IANS">{{cite news|date=29 October 2020|title=ISRO adopts new satellite naming style, RISAT-2BR2, now EOS-01|publisher=Deccan News |url=https://deccan.news/isro-adopts-new-satellite-naming-style-risat-2br2-now-eos-01/|access-date=29 October 2020|via=Indo Asian News Service}}</ref>) is an [[X band|X-band]], [[synthetic-aperture radar]] (SAR) based all weather [[Earth observation satellite|Earth imaging satellite]] built by the [[Indian Space Research Organisation]] (ISRO) for tasks pertaining to [[forestry]], [[Agriculture|agricultural]] and [[Emergency management|disaster management]].<ref>{{cite web|title=PSLV-C49/EOS-01|url=https://www.isro.gov.in/launcher/pslv-c49-eos-01|publisher=Indian Space Research Organisation|access-date=29 October 2020|archive-url=https://web.archive.org/web/20201029074633/https://www.isro.gov.in/launcher/pslv-c49-eos-01|archive-date=29 October 2020}}</ref> 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° [[Orbit phasing|phasing]].<ref>{{cite web|date=14 February 2020|title=Department of Space, Annual Report 2019-20 |url=https://www.isro.gov.in/sites/default/files/flipping_book/annual_report_2019-20_english/files/assets/common/downloads/Annual%20Report%202019-20%20%28English%29.pdf|url-status=live|archive-url=https://web.archive.org/web/20200214130824/https://www.isro.gov.in/sites/default/files/flipping_book/annual_report_2019-20_english/files/assets/common/downloads/Annual%20Report%202019-20%20%28English%29.pdf |archive-date=14 February 2020|access-date=6 November 2020|website=isro.gov.in}}</ref> EOS-01 has been developed at the cost of roughly {{INRConvert|125|c|lk=on|year=2020}}.<ref>{{cite web|title=పీఎస్‌ఎల్‌వీ-సీ49కు ప్రారంభమైన కౌంట్‌డౌన్‌|url=https://m.eenadu.net/general/latestnews/PSLV-C49-Countdown-Starts/0600/120132268|access-date=2020-11-06|website=m.eenadu.net|language=te}}</ref>

== Launch ==
EOS-1 (RISAT-2BR2) has been launched on board a [[Polar Satellite Launch Vehicle|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.<ref name="TOI">{{cite news|author=Surendra Singh|location=New Delhi|title=ISRO will launch first satellite of this year from Sriharikota on 7 November 2020|url=https://timesofindia.indiatimes.com/india/isro-will-launch-first-satellite-of-this-year-from-sriharikota-on-november-7/articleshow/78916323.cms|newspaper=The Times of India|date=28 October 2020|access-date=29 October 2020}}</ref>

As per reports on 29 October 2020, RISAT-2BR2 was renamed as "EOS-01" per new naming criteria adopted by ISRO.<ref name="Name change">{{cite web|url=https://www.jagran.com/news/national-isro-adopts-new-satellite-naming-style-20975436.html|title=इसरो ने बदला सेटेलाइट के नामकरण का तरीका, जनिए अब कैसे रखा जाएगा नाम|trans-title=ISRO has changed the way to name the satellite, how will the name be named now |website=jagran.com|publisher=Jagran|language=hi|access-date=16 May 2021}}</ref><ref>{{cite web|title=ISRO adopts new satellite naming style, RISAT-2BR2 now EOS-01|url=https://telanganatoday.com/isro-adopts-new-satellite-naming-style-risat-2br2-now-eos-01|access-date=2020-11-07|website=telanganatoday.com|date=29 October 2020 }}</ref>

== See also ==
* [[RISAT]]
* [[List of Indian satellites]]

== References ==
{{Reflist|30em}}

== External links ==
* [https://www.isro.gov.in/launcher/pslv-c49-eos-01 PSLV-C49/EOS-01] {{Webarchive|url=https://web.archive.org/web/20201029074633/https://www.isro.gov.in/launcher/pslv-c49-eos-01 |date=29 October 2020 }}
* [https://www.isro.gov.in/pslv-c49-eos-01/pslv-c49-eos-01-gallery PSLV-C49/EOS-01 Gallery] {{Webarchive|url=https://web.archive.org/web/20201107192000/https://www.isro.gov.in/pslv-c49-eos-01/pslv-c49-eos-01-gallery |date=7 November 2020 }}

{{Portal bar|Spaceflight}}{{Indian spacecraft}}{{PSLV}}
{{Orbital launches in 2020}}

[[Category:Space programme of India]]
[[Category:ISRO]]
[[Category:Satellites of India]]
[[Category:Earth observation satellites of India]]
[[Category:Space synthetic aperture radar]]
[[Category:RISAT]]

EOS-01 - Revision history

Gurushivam at 19:19, 9 December 2025