View source for Engineering:GSAT-29

{{Short description|Indian communication satellite}}{{Infobox spaceflight 
| name                  = GSAT-29
| image                 = File:Render of GSAT-29 communication satellite in deployed configuration.png
| image_caption         = Render of GSAT-29

| mission_type          = [[Astronomy:Communications satellite|Communication]]
| operator              = [[Astronomy:Indian Space Research Organisation|ISRO]]
| website               =
| COSPAR_ID             = 
| SATCAT                = 
| mission_duration      =  Planned: 10 years<ref name='GSAT-29_01'>{{cite web |title=GSAT-29 |url=https://www.isro.gov.in/Spacecraft/gsat-29 |website=ISRO.gov.in |access-date=11 November 2018 |archive-date=12 November 2018 |archive-url=https://web.archive.org/web/20181112021250/https://www.isro.gov.in/Spacecraft/gsat-29 |url-status=dead }}</ref> <br /> Elapsed: {{time interval|14 November 2018|show=ymd|sep=,}}

| spacecraft_bus        = [[Engineering:I-3K|I-3K]]
| manufacturer          = [[Astronomy:Indian Space Research Organisation Satellite Centre|ISRO Satellite Centre]]<br/>[[Astronomy:Space Applications Centre|Space Applications Centre]]
| dry_mass              =
| launch_mass           =  {{cvt|3423|kg|lb}}<ref name="GSAT-29_01" /><ref name='Gunter GSAT-26'>[https://space.skyrocket.de/doc_sdat/gsat-29.htm GSAT-29]. Gunter Dirk Krebs, ''Gunter's Space Page''. Accessed: 9 November 2018.</ref>
| power                 = solar arrays, batteries

| launch_date           = 14 November 2018<br>
 11:38 UTC <ref>{{cite web|url=https://www.nasaspaceflight.com/2018/11/indian-gslv-rocket-gsat-29-launch/|title=Indian GSLV rocket launches GSAT-29|author=William Graham|date=2018-11-14}}</ref>
| launch_rocket         = 
| launch_site           = [[Astronomy:Satish Dhawan Space Centre|Satish Dhawan]] [[Astronomy:Satish Dhawan Space Centre Second Launch Pad|SLP]]
| launch_contractor     = [[Astronomy:ISRO|ISRO]]

| orbit_epoch           =
| orbit_reference       = [[Astronomy:Geocentric orbit|Geocentric]]
| orbit_regime          = [[Astronomy:Geostationary orbit|Geostationary]]
| orbit_periapsis       =
| orbit_apoapsis        =
| orbit_inclination     =
| orbit_period          =
| orbit_longitude       = 
| orbit_slot            = 55°E
| apsis                 = gee

| trans_band            = [[Astronomy:Ka band|K<sub>a</sub>]], [[Astronomy:Ku band|K<sub>u</sub>]], [[Astronomy:Q band|Q band]], [[Physics:V band|V band]], and [[Engineering:Laser communication in space|optical communication]] payload<ref name='Gunter GSAT-26'/>
| trans_frequency       =
| trans_bandwidth       =
| trans_capacity        =
| trans_coverage        =
| trans_TWTA            =
| trans_EIRP            =
| trans_HPBW            =
| programme             = [[Engineering:GSAT|GSAT]]
| previous_mission      = [[Engineering:GSAT-6A|GSAT-6A]]
| next_mission          = [[Engineering:GSAT-11|GSAT-11]]
}}

'''GSAT-29''' is a [[Astronomy:High-throughput satellite|high-throughput communication satellite]] developed by the [[Astronomy:Indian Space Research Organisation|Indian Space Research Organisation]] (ISRO).<ref name="isro_official">{{cite web| url=https://www.isro.gov.in/gslv-mkiii-d2-gsat-29-mission| title=GSLV-MkIII-D2/GSAT-29 Mission (Official)| access-date=2017-11-05| archive-url=https://web.archive.org/web/20180612140156/https://www.isro.gov.in/gslv-mkiii-d2-gsat-29-mission| archive-date=2018-06-12| url-status=dead}}</ref><ref>[https://economictimes.indiatimes.com/news/science/isros-gsat-29-launch-in-october/articleshow/65883503.cms ISRO’s GSAT-29 launch in October]. ''The Economic Times'', India. 20 September 2018.</ref> The mission aims at providing high-speed bandwidth to Village Resource Centres (VRC) in rural areas.<ref>{{cite news|url=https://www.thehindu.com/sci-tech/cyclone-clouds-isros-gsat-29-launch-plan/article25473500.ece|title=Cyclone clouds ISRO's GSAT-29 launch plan|newspaper=The Hindu |date=12 November 2018 |last1=d. s |first1=Madhumathi }}</ref> The two Ku and Ka operational payloads will provide communication services to Jammu and Kashmir and Northeast India under Digital India programme.<ref>{{cite news|url=https://timesofindia.indiatimes.com/india/isro-to-launch-communication-satellite-specifically-for-jk-and-ne-on-nov-14/articleshow/66580405.cms|title=Isro to launch communication satellite specifically for J&K and NE on Nov 14|newspaper=The Times of India |date=11 November 2018 }}</ref> At the time of launch GSAT-29 was the heaviest satellite, weighing {{cvt|3423|kg|lb}},<ref>{{cite web|url=https://www.hindustantimes.com/india-news/india-masters-rocket-science-with-isro-sucessfully-launching-gsat-29-satellite/story-m72QQBzx7fxEYLyyoMRgPI.html|title='India masters rocket science': Here's why the new ISRO launch is special|date=15 November 2018 }}</ref> that was placed in orbit by an Indian launch vehicle.<ref>{{cite web|url=https://economictimes.indiatimes.com/news/science/isro-successfully-launches-its-heaviest-satellite-gsat-29-from-sriharikota/videoshow/66621463.cms|title=ISRO successfully launches its heaviest satellite GSAT-29 from Sriharikota|date=14 November 2018 }}</ref><ref name=ISRO20181117>[https://www.isro.gov.in/update/17-nov-2018/third-and-final-orbit-raising-operation-of-gsat-29-satellite-has-been The third and final orbit raising operation of GSAT-29] {{Webarchive|url=https://web.archive.org/web/20181126142112/https://www.isro.gov.in/update/17-nov-2018/third-and-final-orbit-raising-operation-of-gsat-29-satellite-has-been |date=2018-11-26 }} ISRO 17 November 2018</ref> Approved cost of GSAT-29 is {{INR convert|175.63|c}}.<ref name="LS_232_20210804">{{Cite web|date=4 August 2021|title=Government of India, Department of Space, Lok Sabha: Starred Question No. 232 to be answered on Wednesday, August 04, 2021|url=http://164.100.24.220/loksabhaquestions/annex/176/AS232.pdf|url-status=live|archive-url=https://web.archive.org/web/20210804214253/http://164.100.24.220/loksabhaquestions/annex/176/AS232.pdf|archive-date=4 August 2021|access-date=4 August 2021}}</ref>

== Payloads ==
Apart from its main communication payload in [[Astronomy:Ka band|Ka]]/[[Astronomy:Ku band|Ku]] bands, GSAT-29 hosts few experimental payloads to mature their technology for use in future spacecraft.<ref>{{Cite web|url=https://www.isro.gov.in/Spacecraft/gsat-29|title=GSAT-29 - ISRO|website=www.isro.gov.in|language=en|access-date=2018-11-12|archive-date=2018-11-12|archive-url=https://web.archive.org/web/20181112021250/https://www.isro.gov.in/Spacecraft/gsat-29|url-status=dead}}</ref>

* [[Astronomy:Q band|Q band]] and [[Physics:V band|V band]] payload: experimental microwave communication payloads
* Optical Communication Technology (OCT) payload: experimental payload for [[Engineering:Laser communication in space|optical communication]].<ref>{{Cite web|url=https://www.sac.gov.in/SACSITE/SAC%20Courier/July_Oct_2018.pdf|title=SAC Courier, VOl. 43, Issue 03, July-October 2018|date=10 January 2019|website=SAC.gov.in|page=5|archive-url=https://web.archive.org/web/20190110062450/https://www.sac.gov.in/SACSITE/SAC%20Courier/July_Oct_2018.pdf|archive-date=10 January 2019|access-date=10 January 2019}}</ref>
*GEO imaging High Resolution Camera (GHRC): for high resolution imaging from [[Astronomy:Geosynchronous orbit|geosynchronous orbit]]. It has 55 meter resolution and can image in six [[Physics:VNIR|VNIR]] spectral bands at ~0.6 sec/frame.<ref>{{Cite conference|conference=4th ISSE National Conference 2019|last1=Pandya|first1=Mehul|last2=Pradhan|first2=Rohit|date=2019-09-26|title=A study of rocket exhaust plume in the lower atmosphere using GHRC instrument onboard geostationary satellite|url=https://www.researchgate.net/publication/336412752}}</ref><ref>{{Cite AV media|url=https://www.youtube.com/watch?v=cgoPc2lgyKo|date=14 November 2018|title="ISRO Director Kailasavadivoo Sivan Press Meet Live"|type=video|language=hi|time=8 minute 35 seconds}}</ref>

==Launch==

[[File:02 Launch of GSLV Mk III D2 with GSAT-29 from Second Launch Pad of Satish Dhawan Space Centre, Sriharikota (SDSC SHAR).jpg|thumb|left|LVM3 D2 lifting off from launchpad, carrying GSAT-29]]
The satellite was launched on 14 November 2018 through the second developmental flight of [[Engineering:LVM3|LVM3]],<ref>{{cite news|url=https://timesofindia.indiatimes.com/india/isro-gets-nod-for-semi-cryogenic-engine-will-boost-gslvs-lift-capability-by-1-tonne/articleshow/64499802.cms|title=Isro gets nod for semi-cryogenic engine, will boost GSLV's lift capability by 1 tonne|newspaper=The Times of India |date=8 June 2018 }}</ref> that placed the GSAT-29 satellite into its planned [[Engineering:Geosynchronous transfer orbit|geosynchronous transfer orbit]] (GTO) over the equator.<ref>{{cite web|url=https://www.isro.gov.in/update/14-nov-2018/gslv-mkiii-d2-successfully-launches-gsat-29|title=GSLV MkIII-D2 successfully launches GSAT-29|access-date=2018-11-14|archive-date=2018-11-14|archive-url=https://web.archive.org/web/20181114224155/https://www.isro.gov.in/update/14-nov-2018/gslv-mkiii-d2-successfully-launches-gsat-29|url-status=dead}}</ref> It joins the [[Engineering:Indian National Satellite System|Indian National Satellite System]] (INSAT) fleet in geostationary orbit.<ref name=ISRO20181117/>

{| cellpadding="2" style="margin:0 auto; text-align:center;" class="wikitable sortable"
|-
! rowspan="2"| Op #
! rowspan="2"| Date/<br/>Time (UTC)
! rowspan="2"| LAM burn time
! colspan="2"| Height achieved
! rowspan="2"| Inclination<br/>achieved
! rowspan="2"| Orbital period
! rowspan="2"| References
|-
! Apogee || Perigee
|-
| 1 || 15 November 2018 <br /> 08:34 || 4875 sec || {{convert|35897|km|mi|abbr=on}} || {{convert|7642|km|mi|abbr=on}} || 8.9° || 13 hr || <ref>{{cite web |url=https://www.isro.gov.in/update/15-nov-2018/gslv-mk-iii-d2-gsat-29-mission-first-orbit-raising-operation-of-gsat-29-satellite |title=GSLV Mk III-D2 / GSAT-29 Mission: The first orbit raising operation... |publisher=Indian Space Research Organisation |date=15 November 2018 |access-date=15 November 2018 |archive-date=21 November 2018 |archive-url=https://web.archive.org/web/20181121132555/https://www.isro.gov.in/update/15-nov-2018/gslv-mk-iii-d2-gsat-29-mission-first-orbit-raising-operation-of-gsat-29-satellite |url-status=dead }}</ref>
|-
| 2 || 16 November 2018 <br /> 10:14 || 4988 sec || {{convert|35837|km|mi|abbr=on}} || {{convert|32825|km|mi|abbr=on}} || 0.31° || 22 hr, 70 min || <ref>{{cite web |url=https://www.isro.gov.in/update/16-nov-2018/gslv-mk-iii-d2-gsat-29-mission-second-orbit-raising-operation-of-gsat-29 |title=The second orbit raising operation... |publisher=Indian Space Research Organisation |date=16 November 2018 |access-date=16 November 2018 |archive-date=18 November 2018 |archive-url=https://web.archive.org/web/20181118190439/https://www.isro.gov.in/update/16-nov-2018/gslv-mk-iii-d2-gsat-29-mission-second-orbit-raising-operation-of-gsat-29 |url-status=dead }}</ref>
|-
| 3 || 17 November 2018 <br /> 04:25 || 207 sec || {{convert|35875|km|mi|abbr=on}} || {{convert|35307|km|mi|abbr=on}} || n/a || 24hr || <ref>{{cite web |url=https://www.isro.gov.in/update/17-nov-2018/third-and-final-orbit-raising-operation-of-gsat-29-satellite-has-been |title=The third orbit raising operation... |publisher=Indian Space Research Organisation |date=17 November 2018 |access-date=17 November 2018 |archive-date=21 November 2018 |archive-url=https://web.archive.org/web/20181121132505/https://www.isro.gov.in/update/17-nov-2018/third-and-final-orbit-raising-operation-of-gsat-29-satellite-has-been |url-status=dead }}</ref>
|-
|}

== References ==
{{reflist}}

{{GSAT Satellites}}
{{Indian spacecraft}}

[[Category:GSAT satellites]]

{{Sourceattribution|GSAT-29}}