| 词条 | Microsat-R |
| 释义 |
| name = Microsat-R | image = | image_caption = | mission_type = Earth Observation | operator = {{flagicon|India}} DRDO[1] | website = | COSPAR_ID = 2019-006A | SATCAT = | mission_duration = | spacecraft_bus = | manufacturer = DRDO[1] | dry_mass = | launch_mass = {{convert|740|kg}} | power = | launch_date = 24 January 2019 | launch_rocket = PSLV-C44 | launch_site = Satish Dhawan Space Centre (Sriharikota) | launch_contractor = Indian Space Research Organization | entered_service = | disposal_type = Destroyed in Orbit by ASAT | deactivated = | destroyed = 27 March 2019 | orbit_epoch = | orbit_reference = Geocentric | orbit_regime = SSO at 274 km altitude | orbit_periapsis = | orbit_apoapsis = | orbit_inclination = | orbit_period = | orbit_longitude = | orbit_slot = | apsis = | trans_band = | trans_frequency = | trans_bandwidth = | trans_capacity = | trans_coverage = | trans_TWTA = | trans_EIRP = | trans_HPBW = }}Microsat-R was an earth observing satellite manufactured by DRDO[1] and launched by Indian Space Research Organisation and was meant for military use.[2] LaunchMicrosat-R, along with KalamsatV2 as piggy-back, was launched on 24 January 2019[3] at 23:37 hrs from First Launch Pad of Satish Dhawan Space Centre. The launch marks the 46th flight of PSLV.[4] After 13 minutes 26 seconds in flight, Microsat-R was injected at targeted altitude of about 277.2 km. This was the first flight of a new variant of PSLV called PSLV-DL with two strap-ons, each carrying 12.2-tonne of solid propellant.[5] Anti-satellite testMicrosat-R served as target for Indian ASAT experiment on March 27, 2019.[6][7][8] The impact generated more than 400 pieces of orbital debris with 24 having apogee higher than ISS orbit.[9] According to initial assessment by DRDO majority of debris should re-enter in 45 days.[10] A spokesperson from NASA disagreed, saying the debris could last for years because the solar minimum had contracted the atmosphere that would otherwise cause the debris to be destroyed.[11] References1. ^1 2 {{Cite news |url=https://www.thehindu.com/sci-tech/science/isros-first-mission-of-2019-to-put-military-satellite-microsat-r-in-space/article26072511.ece |title= ISRO’s first mission of 2019 to put military satellite Microsat-R in space|work=thehindu |access-date=January 25, 2019}} 2. ^{{Cite news |url=https://www.livemint.com/science/news/pslv-c44-carrying-india-s-military-satellite-microsat-r-and-students-payload-k-1548354446203.html |title=PSLV-C44, carrying India's experimental satellite Microsat-R and students' payload Kalamsat, lifts off |date=January 25, 2019 |work=livemint.com |access-date=January 25, 2019}} 3. ^{{Cite news |url=https://www.indiatoday.in/science/story/pslv-c44-military-satellite-microsatr-kalamsat-launch-1438832-2019-01-25 |title=PSLV-C44 carrying India's military satellite Microsat-R, students' payload Kalamsat, launched |date=January 25, 2019 |work=India Today |access-date=January 25, 2019}} 4. ^{{Cite web|url=https://www.isro.gov.in/update/25-jan-2019/pslv-c44-successfully-launched-microsat-r-and-kalamsat-v2|title=PSLV-C44 successfully launched Microsat-R and Kalamsat-V2 - ISRO|website=www.isro.gov.in|access-date=2019-02-18}} 5. ^{{Cite news |url=https://timesofindia.indiatimes.com/india/isros-pslv-c-44-places-military-satellite-microsat-r-in-orbit/articleshow/67679340.cms |title=Isro’s PSLV C-44 successfully places military satellite Microsat-R |last=Tejonmayam |first=U |date=January 25, 2019 |work=Times of India |access-date=January 25, 2019}} 6. ^{{Cite web|url=https://english.manoramaonline.com/news/nation/2019/03/28/drdo-top-secret-asat-mission-project-xsv1-onmanorama-exclusive.html|title=Onmanorama Exclusive {{!}} DRDO's top secret A-SAT mission codenamed 'Project XSV-1'|website=OnManorama|language=en|access-date=2019-03-28}} 7. ^{{Cite web|url=https://english.manoramaonline.com/news/nation/2019/03/27/mission-shakti-drdo-asat-missile-hit-microsat-r-isro.html|title=Explained Mission Shakti {{!}} What is A-SAT and how it hit Microsat-R in 168 secs|website=OnManorama|language=en|access-date=2019-03-28}} 8. ^{{cite news |last1=Foust |first1=Jeff |title=India Tests Anti-Satellite Weapon |url=https://www.space.com/india-tests-anti-satellite-weapon.html |work=Space.com |date=27 March 2019 |language=en}} 9. ^{{Cite web|url=https://www.npr.org/2019/04/02/709032198/nasa-debris-from-indias-anti-satellite-test-raised-threat-to-space-station|title=NASA: Debris From India's Anti-Satellite Test Raised Threat To Space Station|website=NPR.org|language=en|access-date=2019-04-02}} 10. ^{{Cite news|url=https://www.reuters.com/article/us-india-satellite-idUSKCN1R91DM|title=India says space debris from anti-satellite test to 'vanish' in 45...|date=2019-03-28|work=Reuters|access-date=2019-03-28|language=en}} 11. ^{{Cite news|url=http://spaceweather.com/archive.php?view=1&day=03&month=04&year=2019|title=SOLAR MINIMUM IS A TERRIBLE TIME TO BLOW UP A SATELLITE|work=spaceweather.com|date=2019-04-03|access-date=2019-04-03|language=en}} See also
External links
4 : Earth observation satellites of India|Spacecraft launched by India in 2019|Spacecraft launched by PSLV rockets|2019 in spaceflight |
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