Shikha Jha at 00:57, 17 December 2025

2025-12-17T00:57:44Z

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{{Short description|Indian communication satellite}}
{{Use dmy dates|date=June 2017}}
{{Infobox spaceflight |auto=all
| name = GSAT-15

| mission_type = [[Communications satellite|Communications]]
| operator = [[ISRO]]
| COSPAR_ID = 2015-065A
| SATCAT = 41028
| website = [http://www.isro.gov.in/Spacecraft/gsat-15 GSAT-15]
| mission_duration = Planned: 12 years<ref name="GSAT15">{{cite web |url=http://www.isro.gov.in/Spacecraft/gsat-15 |title=GSAT-15 |publisher=Indian Space Research Organisation |access-date=11 November 2015 |archive-date=4 September 2016 |archive-url=https://web.archive.org/web/20160904044806/http://www.isro.gov.in/Spacecraft/gsat-15 |url-status=dead }}</ref> Elapsed: {{time interval|11 November 2015 21:34:07|show=ymd|sep=,}}

| spacecraft_bus = [[I-3K]]
| manufacturer = [[Indian Space Research Organisation Satellite Centre|ISRO Satellite Centre]] [[Space Applications Centre]]
| launch_mass = {{convert|3164|kg|lb|0|abbr=on}}<ref name="GSAT15" />
| dry_mass = {{convert|1440|kg|lb|0|abbr=on}}<ref name="GSAT15" />
| dimensions =
| power = 6,200 watts<ref name="GSAT15" />

| launch_date = {{start-date|10 November 2015, 21:34:07}} UTC<ref name="nasasf20151110">{{cite news |url=https://www.nasaspaceflight.com/2015/11/ariane-5-arabsat-6b-gsat-15-dual-launch/ |title=Ariane 5 successfully launches Arabsat-6B and GSAT-15 |work=[[NASASpaceFlight.com]] |first=Chris |last=Bergin |date=10 November 2015 |access-date=12 June 2017}}</ref><ref>{{cite news |url=https://timesofindia.indiatimes.com/india/Indias-communications-satellite-GSAT-15-launched-successfully/articleshow/49743260.cms |title=India's communications satellite GSAT-15 launched successfully |work=The Times of India |agency=Times News Network |first=Chethan |last=Kumar |date=11 November 2015}}</ref>
| launch_rocket = [[Ariane 5|Ariane 5 ECA]], VA-227<ref name="nasasf20151110" />
| launch_site = [[Guiana Space Centre|Kourou]] [[ELA-3]]
| launch_contractor = [[Arianespace]]
| entered_service = 4 January 2016<ref>{{cite web |url=http://www.isro.gov.in/update/04-jan-2016/gsat-15-satellite-operational-health-of-spacecraft-normal |title=GSAT-15 Satellite is Operational... |publisher=Indian Space Research Organisation |date=4 January 2016 |access-date=12 June 2017 |archive-date=6 September 2017 |archive-url=https://web.archive.org/web/20170906233057/http://www.isro.gov.in/update/04-jan-2016/gsat-15-satellite-operational-health-of-spacecraft-normal |url-status=dead }}</ref>

| disposal_type =
| deactivated = 

| orbit_reference = [[Geocentric orbit|Geocentric]]
| orbit_regime = [[Geostationary orbit|Geostationary]]
| orbit_longitude = 93.5° E
| orbit_periapsis = {{convert|35774|km|mi|abbr=on}}
| orbit_apoapsis = {{convert|35799|km|mi|abbr=on}}
| orbit_inclination = 0.0728°
| orbit_epoch = 11 June 2017, 00:27:58 UTC<ref>{{cite web |url=http://heavens-above.com/orbit.aspx?satid=41028 |title=GSAT-15 - Orbit |work=Heavens-Above |date=11 June 2017 |access-date=12 June 2017}}</ref>
| apsis = gee

| trans_band = 24 × [[Ku band|Ku band]]
| trans_frequency = 
| trans_bandwidth = 36 MHz
| trans_capacity = 
| trans_coverage = 
| trans_TWTA = 
| trans_EIRP = 
| trans_HPBW = 

| programme = [[GSAT]]
| previous_mission = [[GSAT-6]]
| next_mission = [[GSAT-18]]
}}

'''GSAT-15''' is an Indian communication satellite similar to [[GSAT-10]] to augment the capacity of transponders to provide more bandwidth for Direct-to-Home television and VSAT services. It was successfully launched on 10 November 2015 at 21:34:07 UTC aboard an [[Ariane 5]] rocket, along with the ArabSat 6B satellite.<ref>{{Cite news |url=http://www.ndtv.com/india-news/indias-latest-communication-satellite-gsat-15-successfully-launched-1242353 |title=ISRO's Diwali Gift: GSAT-15 Communications Satellite Successfully Launched |date=11 November 2015 |work=[[NDTV]]}}</ref>

==Payload==
The satellite carries 24 [[Ku band|Ku band]] transponders and a [[GPS Aided GEO Augmented Navigation|GAGAN]] navigational payload operating in the [[L band|L1]] and [[L band|L5]] bands.<ref name="GSAT15" /><ref name="isro_main">{{cite web |url=http://www.isro.org/scripts/futureprogramme.aspx |title=Future Programme |publisher=Indian Space Research Organisation |access-date=11 October 2013}}</ref> Besides that it will also carry 2 Ku band beacons.<ref name="GSAT15" />

==Satellite==
GSAT-15 has an estimated lifespan of 12 years. It will augment telecommunication, Direct-to-Home and radio navigation services.<ref>{{cite news |url=https://zeenews.india.com/news/space/cabinet-clears-gsat-15-and-gsat-16-communication-satellites-plans_858407.html |publisher=Zee News |title=Cabinet clears GSAT-15 and GSAT-16 communication satellites plans |access-date=11 October 2013}}</ref><ref name="pib">{{cite web |url=http://pib.nic.in/newsite/erelease.aspx?relid=98889 |title=Launch of GSAT-15 and GSAT-16 |publisher=Press Information Bureau |date=29 August 2013 |access-date=11 October 2013}}</ref>

==Cost==
Cost of launch and insurance: about {{INR|860 Crore}}.<ref>{{cite news |url=http://www.aninews.in/newsdetail2/story118125/cabinet-approves-gsat-15-gsat-16-communication-satellites.html |title=Cabinet approves GSAT-15, GSAT-16 communication satellites |work=ANI News |date=28 June 2013 |agency=ANI |access-date=11 October 2013 |url-status=dead |archive-url=https://web.archive.org/web/20141209160654/http://www.aninews.in/newsdetail2/story118125/cabinet-approves-gsat-15-gsat-16-communication-satellites.html |archive-date=9 December 2014 }}</ref>

==See also==
{{Portal|Spaceflight}}
* [[Indian Regional Navigation Satellite System]]
* [[Global Navigation Satellite System]]
* [[Global Positioning System]]

==References==
{{Reflist|2}}

{{GSAT Satellites}}
{{Indian spacecraft}}
{{Orbital launches in 2015}}

[[Category:GSAT satellites]]
[[Category:Spacecraft launched in 2015]]
[[Category:2015 in India]]
[[Category:Ariane commercial payloads]]

GSAT-15 - Revision history

Shikha Jha at 00:57, 17 December 2025