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{{Distinguish|Microsat-R}}
{{Infobox spaceflight
| name = Microsat-TD
| image = File:PSLV-C40-_Microsat-TD_during_pre-launch_testing.jpg
| image_caption =

| mission_type =
| operator = [[ISRO]]
| website =
| COSPAR_ID = 2018-004T
| SATCAT = 43128
| mission_duration = Planned: 10 months<br/>Duration: {{time interval|12 January 2018|27 November 2020|show=ymd|sep=,}}

| spacecraft_bus = [[Indian Mini Satellite bus|IMS]]-1
| manufacturer = [[ISRO]]
| dry_mass =
| launch_mass = {{convert|133.2|kg}}
| power =

| launch_date = 12 January 2018
| launch_rocket = [[PSLV-C40]]
| launch_site = [[Satish Dhawan Space Centre|Satish Dhawan Space Centre (Sriharikota)]]
| launch_contractor =
| entered_service =

| disposal_type = [[Orbital decay]]
| deactivated =
| decay_date = 27 November 2020<ref name="UNCOPUOS_STSC_2022">{{cite web |last1=Kumar |first1=Anil |title=India's Efforts in Space Debris Management |url=https://www.unoosa.org/documents/pdf/copuos/stsc/2022/19_INDIA_Item8_Indias_efforts_in_Space_Debris_Management.pdf |access-date=19 February 2022}}</ref>

| orbit_epoch =
| orbit_reference = [[Geocentric orbit|Geocentric]]
| orbit_regime = [[Sun-synchronous orbit]]
| orbit_periapsis = {{convert|350|km|mi|abbr=on}}
| orbit_apoapsis = {{convert|350|km|mi|abbr=on}}
| orbit_inclination = 96.87°
| orbit_period = 91.5 minutes
}}
'''Microsat-TD''' was an Earth observing satellite developed by [[Indian Space Research Organisation|ISRO]].<ref name="isro">{{cite news | url=https://www.isro.gov.in/Spacecraft/microsat-0 | title=Official page of MICROSAT | work=ISRO | date=January 12, 2018 | access-date=January 24, 2018 | archive-date=January 25, 2018 | archive-url=https://web.archive.org/web/20180125015338/https://www.isro.gov.in/Spacecraft/microsat-0 | url-status=dead }}</ref> Its launch marked India's 100 satellites in space.<ref name="century">{{cite web | url=http://m.thehindubusinessline.com/news/science/isro-launches-its-100th-satellite-into-space/article10027585.ece | title=ISRO's maiden century | work= The Hindu| date=12 January 2018 | access-date=January 24, 2018}}</ref> This satellite could capture images at night by imaging in [[infrared]] spectrum.<ref name="night">{{cite news | url=https://m.timesofindia.com/home/science/isro-releases-images-captured-by-microsat-and-nanosatellite/amp_articleshow/62622667.cms | title=ISRO's night images | newspaper= Times of India| date=23 January 2018 | access-date=January 23, 2018}}</ref><ref>{{Cite web|title=Images from INS-1C and Microsat - ISRO|url=https://www.isro.gov.in/update/23-jan-2018/images-ins-1c-and-microsat|access-date=2020-12-04|website=www.isro.gov.in}}</ref>

==Launch==
'''MICROSAT-TD''' satellite was launched at 0359 UTC on 12 January 2018<ref>{{Cite web|title=PSLV Successfully Launches 31 Satellites in a Single Flight - ISRO|url=https://www.isro.gov.in/update/12-jan-2018/pslv-successfully-launches-31-satellites-single-flight|access-date=2020-12-04|website=www.isro.gov.in|archive-date=2020-11-30|archive-url=https://web.archive.org/web/20201130211525/https://www.isro.gov.in/update/12-jan-2018/pslv-successfully-launches-31-satellites-single-flight|url-status=dead}}</ref> by [[PSLV-C40]] and its deployment profile was previously rehearsed on [[PSLV-C38]] mission.<ref>{{Cite news|date=2017-06-23|title=ISRO upbeat over PSLV- C38 mission success|language=en-IN|work=The Hindu|url=https://www.thehindu.com/news/national/isro-upbeat-over-pslv-c38-mission-success/article19136971.ece|access-date=2020-12-04|issn=0971-751X}}</ref><ref>{{Cite web|last=rajasekhar|first=pathri|date=2017-06-20|title=Isro to lower rocket's altitude|url=http://www.deccanchronicle.com/science/science/200617/isro-to-lower-rockets-altitude.html|access-date=2020-12-04|website=Deccan Chronicle|language=en}}</ref> Microsat-TD was launched along with [[Cartosat-2F]], [[INS-1C]] and 28 satellites from 6 countries<ref name="pslvc40">{{cite web | url=https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C40_Cartosat2SeriesMission/index.html#3 | title=PSLV-C40 Brochure | publisher=ISRO | access-date=January 24, 2018 | archive-date=January 25, 2018 | archive-url=https://web.archive.org/web/20180125015722/https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C40_Cartosat2SeriesMission/index.html#3 | url-status=dead }}</ref> and separated 1 hour 45 minutes after first stage ignition.<ref name="longestpslv">{{cite web | url=http://inba.tv/indias-100th-satellite-laucnched-isro/ | title=Longest PSLV mission | publisher=INBA | access-date=January 24, 2018 | archive-url=https://web.archive.org/web/20180124074533/http://inba.tv/indias-100th-satellite-laucnched-isro/ | archive-date=January 24, 2018 | url-status=dead }}</ref> Duration of PSLV C40 mission was 2 hours and 21 minutes, making it the longest mission of PSLV at that time.

== Payload ==
Microsat-TD was [[Indian Mini Satellite bus|IMS-1]] based technology demonstrator carrying optical imaging payload in two bands.<ref>{{Cite web|last=Annadurai|first=Mylswami|date=January 2015|title=User Interaction Meet NRSC 2015|url=http://nrsc.gov.in/pdf/1.1.User%20Meet_NRSC_2015-01-21_Ver-2_Anna_durai.pdf|url-status=live|archive-url=https://web.archive.org/web/20150327055110/http://nrsc.gov.in/pdf/1.1.User%20Meet_NRSC_2015-01-21_Ver-2_Anna_durai.pdf|archive-date=27 March 2015}}</ref><ref>{{Cite web|title=Microsat|url=http://www.isac.gov.in/earth-observation/html/microsat.jsp|url-status=dead|archive-url=https://web.archive.org/web/20180227193635/http://www.isac.gov.in/earth-observation/html/microsat.jsp|archive-date=27 February 2018}}</ref>

* 0.8 meter resolution (panchromatic, 0.5 -0.85 µm) with 3.2 km swath
* 6 meter resolution (IR,3.7-4.8 µm and 8-12 µm) with 2 km swath

==End of mission==

To reduce its orbital stay, Microsat-TD was de-orbited while depleting its left over propellant near the end of its life. Satellite reentered within a month, on 27 November 2020.<ref name="UNCOPUOS_STSC_2022"/>

==See also==
*[[Microsat-R]]

==References==
{{Reflist}}

== External links ==
* {{Official website|http://www.isro.gov.in/Spacecraft/microsat-0}}

{{Indian spacecraft}}
{{Orbital launches in 2018}}

[[Category:Earth observation satellites of India]]
[[Category:Spacecraft launched by India in 2018]]
[[Category:Small satellites]]
[[Category:Spacecraft launched by PSLV rockets]]

Microsat (ISRO) - Revision history

Ajay Kumar: Created a new article