Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
RISAT-2BR1
open-in-new
<h2 id="overview">Overview</h2> <p>The RISAT-2BR1 is follow on to <a href="/facts/RISAT-2B/yeEcQKdj">RISAT-2B</a> and has an <a href="/facts/X_band/eMpD5T2r">X-band</a> SAR with unfurlable radial rib reflector antenna of 3.6 meter diameter.<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> RISAT-2BR1 can operate in different modes including Very High Resolution imaging modes of 1 x 0.5 m resolution and 0.5 x 0.3 m resolution <a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> with swath of 5 to 10 km.<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> </p> <ul><li>Mass: 628 kg (1,385 lb) <a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a></li> <li>Orbit: 557 km (346 mi) (circular) at inclination of 37.0° <a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a></li> <li>Mission life: 5 years <a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a></li></ul> <h2 id="launch">Launch</h2> <p>RISAT-2BR1 was launched aboard <a href="/facts/PSLV-C48/yn8sgDrf">PSLV-C48</a> on 11 December 2019 at 09:55 UTC with nine other ride-sharing commercial satellites from <a href="/facts/Satish_Dhawan_Space_Centre_First_Launch_Pad/GkXD3tL3">First Launch Pad</a> of Satish Dhawan Space Centre, SHAR. Launch vehicle used was -QL variant of <a href="/facts/Polar_Satellite_Launch_Vehicle/KantsJM7">Polar Satellite Launch Vehicle</a> with four PSOM-XL strap-ons and employed a 195 kg Dual Launch Adapter (DLA) to accommodate primary and secondary payloads. After a flight of 16 minutes 27 seconds, RISAT-2BR1 was separated from PSLV fourth stage (PS4) and injected into 576 km circular orbit with 37.0° inclination. After primary payload, DLA and subsequently nine other co-passenger satellites were separated. RISAT-2BR1 deployed it <a href="/facts/Solar_panels_on_spacecraft/js1dxpcr">solar panels</a> within 3 minutes after separation and deployed its 3.6 meter antenna on 08:30 UTC, on 12 December 2019.<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a><a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a> </p> <h3>Secondary payloads</h3> <p>Nine commercial ridesharing satellites weighed 157.6 kg cumulatively.<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a><a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a> </p> <ul><li>QPS SAR-1 "Izanagi"「イザナギ」(~100 kg) <a href="/facts/X_band/eMpD5T2r">X-band</a> SAR imaging satellite with 3.6 m antenna by <a href="/facts/IQPS/X5TsdoJy">iQPS</a>.<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a><a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></li></ul> <ul><li>Four <a href="/facts/Spire_Global/DQpgMngs">Lemur-2</a> cubesats by <a href="/facts/Spire_Global/DQpgMngs">Spire Global</a>.<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a></li></ul> <ul><li>Duchifat-3 (2.3 kg) by Sha'ar Hanegev High School students built at Herzliya Science Center.<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a></li></ul> <ul><li>1HOPSAT (22 kg) high resolution video and imaging satellite by Hera systems for Seguritech of Mexico.<a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a></li></ul> <ul><li><a href="/facts/Tyvak/2LF1urCT">Tyvak-0129</a> (11 kg) <a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a><a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a></li></ul> <ul><li><a href="/facts/Tyvak/2LF1urCT">Tyvak-0092</a> (5 kg) (NANOVA) <a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a></li></ul> <h2 id="see-also">See also</h2> <ul> <li>Spaceflight portal</li></ul> <ul><li><a href="/facts/List_of_Indian_satellites/BAH2maDM">List of Indian satellites</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"PSLV successfully launches RISAT-2BR1 and nine commercial satellites in its fiftieth flight". isro.gov.in. ISRO. 11 December 2019. Archived from the original on 12 December 2019. Retrieved 12 December 2019. <a href="https://web.archive.org/web/20191212093323/https://www.isro.gov.in/update/11-dec-2019/press-release-pslv-successfully-launches-risat-2br1-and-nine-commercial" target="_blank">https://web.archive.org/web/20191212093323/https://www.isro.gov.in/update/11-dec-2019/press-release-pslv-successfully-launches-risat-2br1-and-nine-commercial</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"ISRO's RISAT-2BR1, 9 Other Foreign Satellites Blast Off from Sriharikota". news18.com. News18. Retrieved 11 December 2019. <a href="https://www-news18-com.cdn.ampproject.org/v/s/www.news18.com/amp/news/india/with-few-hours-left-for-launch-of-isros-risat-2br1-heres-all-you-need-to-know-about-the-spy-satellite-2419867.html?usqp=mq331AQCKAE=&_js_v=0.1" target="_blank">https://www-news18-com.cdn.ampproject.org/v/s/www.news18.com/amp/news/india/with-few-hours-left-for-launch-of-isros-risat-2br1-heres-all-you-need-to-know-about-the-spy-satellite-2419867.html?usqp=mq331AQCKAE=&_js_v=0.1</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Singh, Surendra (3 December 2019). "ISRO to launch another "eye in the sky" Risat-2BR1 on 11 December 2019, will help boost border surveillance". The Times of India. Retrieved 4 December 2019. <a href="https://timesofindia.indiatimes.com/india/isro-to-launch-another-eye-in-the-sky-risat-2br1-on-dec-11-will-help-boost-border-surveillance/articleshow/72340281.cms" target="_blank">https://timesofindia.indiatimes.com/india/isro-to-launch-another-eye-in-the-sky-risat-2br1-on-dec-11-will-help-boost-border-surveillance/articleshow/72340281.cms</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"ISRO to launch border surveillance satellite Risat-2BR1 on December 11". Business Standard India. 3 December 2019. Retrieved 4 December 2019. <a href="https://www.business-standard.com/article/current-affairs/isro-to-launch-border-surveillance-satellite-risat-2br1-on-dec-11-119120301040_1.html" target="_blank">https://www.business-standard.com/article/current-affairs/isro-to-launch-border-surveillance-satellite-risat-2br1-on-dec-11-119120301040_1.html</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"RISAT-2B - Radial Rib Antenna". isro.gov.in. ISRO. Archived from the original on 29 May 2019. Retrieved 4 December 2019. <a href="https://web.archive.org/web/20190529104039/https://www.isro.gov.in/update/22-may-2019/risat-2b-radial-rib-antenna" target="_blank">https://web.archive.org/web/20190529104039/https://www.isro.gov.in/update/22-may-2019/risat-2b-radial-rib-antenna</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"Rajya Sabha Unstarred Question No. 1531 - Earth Observation satellite RISAT-2B" (PDF). 4 July 2019. Retrieved 4 July 2019. <a href="http://164.100.158.235/question/annex/249/Au1531.pdf" target="_blank">http://164.100.158.235/question/annex/249/Au1531.pdf</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"ISRO to launch second "spy" satellite RISAT-2BR1 on 11 December 2019 to enhance India's surveillance capability". Moneycontrol. 3 December 2019. Retrieved 4 December 2019. <a href="https://www.moneycontrol.com/news/science/isro-to-launch-second-spy-satellite-risat-2br1-on-december-11-to-enhance-indias-surveillance-capability-4695061.html" target="_blank">https://www.moneycontrol.com/news/science/isro-to-launch-second-spy-satellite-risat-2br1-on-december-11-to-enhance-indias-surveillance-capability-4695061.html</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>"RISAT-2BR1". isro.gov.in. ISRO. Archived from the original on 12 December 2019. Retrieved 12 December 2019. <a href="https://web.archive.org/web/20191212093345/https://www.isro.gov.in/Spacecraft/risat-2br1" target="_blank">https://web.archive.org/web/20191212093345/https://www.isro.gov.in/Spacecraft/risat-2br1</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>"PSLV C48 Press kit" (PDF). 5 December 2019. Archived from the original (PDF) on 10 December 2019. Retrieved 5 December 2019. <a href="https://web.archive.org/web/20191210055319/https://www.isro.gov.in/sites/default/files/flipping_book/pslv-c48risat-2br1_missionr/files/assets/common/downloads/PSLV-C48RISAT-2BR1%20Mission.pdf" target="_blank">https://web.archive.org/web/20191210055319/https://www.isro.gov.in/sites/default/files/flipping_book/pslv-c48risat-2br1_missionr/files/assets/common/downloads/PSLV-C48RISAT-2BR1%20Mission.pdf</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>"PSLV C48 Press kit" (PDF). 5 December 2019. Archived from the original (PDF) on 10 December 2019. Retrieved 5 December 2019. <a href="https://web.archive.org/web/20191210055319/https://www.isro.gov.in/sites/default/files/flipping_book/pslv-c48risat-2br1_missionr/files/assets/common/downloads/PSLV-C48RISAT-2BR1%20Mission.pdf" target="_blank">https://web.archive.org/web/20191210055319/https://www.isro.gov.in/sites/default/files/flipping_book/pslv-c48risat-2br1_missionr/files/assets/common/downloads/PSLV-C48RISAT-2BR1%20Mission.pdf</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>"Radial Rib Antenna of RISAT-2BR1 deployed successfully". isro.gov.in. ISRO. Archived from the original on 12 December 2019. Retrieved 12 December 2019. <a href="https://web.archive.org/web/20191212141337/https://www.isro.gov.in/update/12-dec-2019/radial-rib-antenna-of-risat-2br1-deployed-successfully" target="_blank">https://web.archive.org/web/20191212141337/https://www.isro.gov.in/update/12-dec-2019/radial-rib-antenna-of-risat-2br1-deployed-successfully</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>"PSLV successfully launches RISAT-2BR1 and nine commercial satellites in its fiftieth flight". isro.gov.in. ISRO. 11 December 2019. Archived from the original on 12 December 2019. Retrieved 12 December 2019. <a href="https://web.archive.org/web/20191212093323/https://www.isro.gov.in/update/11-dec-2019/press-release-pslv-successfully-launches-risat-2br1-and-nine-commercial" target="_blank">https://web.archive.org/web/20191212093323/https://www.isro.gov.in/update/11-dec-2019/press-release-pslv-successfully-launches-risat-2br1-and-nine-commercial</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>"PSLV C48 Press kit" (PDF). 5 December 2019. Archived from the original (PDF) on 10 December 2019. Retrieved 5 December 2019. <a href="https://web.archive.org/web/20191210055319/https://www.isro.gov.in/sites/default/files/flipping_book/pslv-c48risat-2br1_missionr/files/assets/common/downloads/PSLV-C48RISAT-2BR1%20Mission.pdf" target="_blank">https://web.archive.org/web/20191210055319/https://www.isro.gov.in/sites/default/files/flipping_book/pslv-c48risat-2br1_missionr/files/assets/common/downloads/PSLV-C48RISAT-2BR1%20Mission.pdf</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>"List of International Customer Satellites Launched by PSLV" (PDF). ISRO. Archived from the original (PDF) on 12 December 2019. Retrieved 13 December 2019. <a href="https://web.archive.org/web/20191212163126/https://www.isro.gov.in/sites/default/files/319_satellites_list.pdf" target="_blank">https://web.archive.org/web/20191212163126/https://www.isro.gov.in/sites/default/files/319_satellites_list.pdf</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>"12月12日（木）小型SAR衛星「イザナギ」との初交信が成功しました！" (in Japanese). iQPS Inc. 12 December 2019. Retrieved 12 December 2019. <a href="https://i-qps.net/news/172" target="_blank">https://i-qps.net/news/172</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>"福岡）ベンチャーが衛星公開 １０月にもインドで発射：朝日新聞デジタル". 朝日新聞デジタル (in Japanese). Asahi. 2 September 2019. Retrieved 12 December 2019. <a href="https://www.asahi.com/articles/ASM924CXSM92TIPE00X.html" target="_blank">https://www.asahi.com/articles/ASM924CXSM92TIPE00X.html</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>"Spaceflight Announces Next Three Rideshare Missions on ISRO's PSLV, Slated Through the End of 2019". Spaceflight. 21 October 2019. Retrieved 29 November 2019. <a href="https://spaceflight.com/spaceflight-announces-next-three-rideshare-missions-on-isros-pslv-slated-through-the-end-of-2019/" target="_blank">https://spaceflight.com/spaceflight-announces-next-three-rideshare-missions-on-isros-pslv-slated-through-the-end-of-2019/</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>"הלוויין דוכיפת 3 ישוגר בעוד כשבועיים מהודו". הידען (in Hebrew). 30 November 2019. Retrieved 1 December 2019. <a href="https://www.hayadan.org.il/duchifat-3-satellite-will-be-launched-in-two-weeks-from-india-0112191" target="_blank">https://www.hayadan.org.il/duchifat-3-satellite-will-be-launched-in-two-weeks-from-india-0112191</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> <li id="fn:19"><p>"Lanzan primer satélite enfocado para videovigilancia en México" (in Mexican Spanish). Seguritech. Retrieved 12 December 2019. <a href="https://seguritech.com/prensa/lanzan-primer-satelite-enfocado-para-videovigilancia-en-mexico/" target="_blank">https://seguritech.com/prensa/lanzan-primer-satelite-enfocado-para-videovigilancia-en-mexico/</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></p></li> <li id="fn:20"><p>"Pathfinder Risk Reduction (Tyvak 0129)". space.skyrocket.de. Retrieved 15 January 2020. <a href="https://space.skyrocket.de/doc_sdat/pathfinder-risk-reduction.htm" target="_blank">https://space.skyrocket.de/doc_sdat/pathfinder-risk-reduction.htm</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></p></li> <li id="fn:21"><p>"Lockheed Martin Launches First Smart Satellite Enabling Space Mesh Networking - January 16, 2020". Lockheed Martin. Retrieved 22 January 2020. <a href="https://news.lockheedmartin.com/2020-01-16-Lockheed-Martin-Launches-First-Smart-Satellite-Enabling-Space-Mesh-Networking" target="_blank">https://news.lockheedmartin.com/2020-01-16-Lockheed-Martin-Launches-First-Smart-Satellite-Enabling-Space-Mesh-Networking</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></p></li> <li id="fn:22"><p>"אלביט שיגרה לחלל ננו-לוויין ליישומי תקשורת". israeldefense.co.il (in Hebrew). Israel Defense. 18 December 2019. Retrieved 18 December 2019. <a href="https://www.israeldefense.co.il/he/node/41316" target="_blank">https://www.israeldefense.co.il/he/node/41316</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></p></li> </ol>