https://en.bharatpedia.org/w/index.php?action=history&feed=atom&title=Technology_Experiment_SatelliteTechnology Experiment Satellite - Revision history2026-10-21T14:12:10ZRevision history for this page on the wikiMediaWiki 1.43.6https://en.bharatpedia.org/w/index.php?title=Technology_Experiment_Satellite&diff=424628&oldid=prevAjay Kumar: Created a new article2023-09-02T07:46:11Z<p>Created a new article</p>
<p><b>New page</b></p><div>{{Use Indian English|date=May 2016}}<br />
{{Use dmy dates|date=May 2020}}<br />
{{Infobox spaceflight<br />
| name = Technology Experiment Satellite <br />
| image = <br />
| image_caption =<br />
| mission_type = [[Earth observation satellite|Earth Observation]]<br/>[[Aerial reconnaissance|Photo-reconnaissance]]<br />
| operator = [[National Technical Research Organisation|NTRO]]<br />
| website = [http://www.isro.org/pslv-c3/pslv-c3.aspx ISRO: PSLV-C3]<br />
| COSPAR_ID = 2001-049A<br />
| SATCAT = 26957<br />
| mission_duration = Elapsed: {{time interval|22 October 2001 04:53:00}}<br />
<br />
| spacecraft_bus = <br />
| manufacturer = [[Indian Space Research Organisation|ISRO]]<br/>[[Liquid Propulsion Systems Centre|LPSC]]<br />
| dry_mass = <br />
| launch_mass = 1108 kg<br />
| power =<br />
<br />
| launch_date = 22 October 2001, 04:53:00 UTC<br />
| launch_rocket = [[PSLV-C3]]<br />
| launch_site = [[Satish Dhawan Space Centre|SHAR]], [[Satish Dhawan Space Centre|First Launch Pad]]<br />
| launch_contractor = [[Indian Space Research Organisation|ISRO]]<br />
<br />
| disposal_type = <br />
| deactivated = <br />
| last_contact = <!-- {{end-date|[insert date here]}} --><br />
| decay_date =<br />
<br />
| orbit_epoch = 22 October 2001<br />
| orbit_reference = [[geocentric orbit|Geocentric]]<ref name="Trajectory">{{Cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayTrajectory.action?id=2001-049A|title=TES: Trajectory 2001-049A|date=17 April 2020|website=nssdc.gsfc.nasa.gov|publisher=NASA|access-date=14 May 2020}} {{PD-notice}}</ref><br />
| orbit_regime = [[Sun-synchronous orbit|Sun-synchronous]]<br />
| orbit_periapsis = 551 km<br />
| orbit_apoapsis = 579 km<br />
| orbit_inclination = 97.8°<br />
| orbit_period = 96.0 minutes<br />
| apsis = gee<br />
<br />
| instruments = Camera<br />
| instrument_type = camera<br />
<br />
}}<br />
'''Technology Experiment Satellite''' ('''TES''') is an Indian [[remote sensing]] and photo-reconnaissance satellite.<br />
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==Launch==<br />
TES was launched by the [[PSLV-C3]] rocket from the [[Satish Dhawan Space Centre|Sriharikota High Altitude Range]] (SHAR) at [[Sriharikota]] in the south-east Indian coast at 04:53 UT on 22 October 2001. This is the fifth consecutive successful launch of the 294-tonne [[Polar Satellite Launch Vehicle]] (PSLV) rocket and the second launch with multiple satellites. The 1108&nbsp;kg satellite carries a one-meter resolution panchromatic camera is an experimental [[satellite]] to demonstrate and validate, in orbit, technologies that could be used in the future satellites of [[Indian Space Research Organisation]] (ISRO). It was successfully placed in 572&nbsp;km [[Sun-synchronous orbit|Sun-synchronous]] orbit on 22 October 2001 using the [[PSLV-C3]]. The PSLV-C3 also injected two more satellites: [[PROBA]], a Belgian satellite and [[BIRD (satellite)|BIRD]], a German satellite.<br />
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==Mission==<br />
The technologies demonstrated in TES are [[Spacecraft attitude control|attitude and orbit control system]], high torque [[reaction wheel]]s, new reaction [[control system]] with optimised [[Thrusters (spacecraft)|thrusters]] and a single [[propellant tank]], light weight [[Spacecraft|spacecraft structure]], solid state recorder, [[X band|X-band]] phased array antenna, improved satellite positioning system, miniaturised TTC and power system and, two-mirror-on-axis camera optics.<br />
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TES has a pan chromatic camera for [[remote sensing]]. The camera is which is capable of producing images of one metre [[Optical resolution|resolution]]. One metre resolution means the camera is able to distinguish between two objects which are separated at least a metre.<br />
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The launch of TES made India the second country in the world after the United States that can commercially offer images with one metre resolution.<ref name="BBC1679321">[http://news.bbc.co.uk/2/hi/south_asia/1679321.stm BBC News: India's spy satellite boost]</ref> It is used for remote sensing of civilian areas, mapping industry and geographical information services. TES, helped the [[United States Army|US Army]] with high-resolution images during the 11 September 2001 counter-terrorism offensive against the Taliban.<br />
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==See also==<br />
{{Portal|Spaceflight}}<br />
* [[Integrated Space Cell#Military|Indian military satellites]]<br />
* [[Polar Satellite Launch Vehicle]]<br />
* [[List of Indian satellites]]<br />
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==References==<br />
{{Reflist}}<br />
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==External links==<br />
* [http://www.isro.org/pslv-c3/pslv-c3.aspx ISRO PSLV C3 page] {{Webarchive|url=https://web.archive.org/web/20140325082903/http://www.isro.org/pslv-c3/pslv-c3.aspx |date=25 March 2014 }}<br />
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{{Indian space programme}}<br />
{{Indian spacecraft}}<br />
{{Orbital launches in 2001}}<br />
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[[Category:Earth observation satellites of India]]<br />
[[Category:Spacecraft launched by PSLV rockets]]<br />
[[Category:Spacecraft launched in 2001]]<br />
[[Category:2001 in India]]</div>Ajay Kumar