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Technology Experiment Satellite (TES) is an Indian remote sensing and photo-reconnaissance satellite.

Technology Experiment Satellite

Mission type	Earth Observation Photo-reconnaissance
Operator	NTRO
COSPAR ID	2001-049A
SATCAT no.	26957
Website	ISRO: PSLV-C3
Mission duration	Elapsed: 20 years, 11 months and 10 days
Spacecraft properties
Manufacturer	ISRO LPSC
Launch mass	1108 kg
Start of mission
Launch date	22 October 2001, 04:53:00 UTC
Rocket	PSLV-C3
Launch site	SHAR, First Launch Pad
Contractor	ISRO
Orbital parameters
Reference system	Geocentric[1]
Regime	Sun-synchronous
Perigee altitude	551 km
Apogee altitude	579 km
Inclination	97.8°
Period	96.0 minutes
Epoch	22 October 2001
Instruments
Camera

Launch

TES was launched by the PSLV-C3 rocket from the 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 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 km 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, a German satellite.

Mission

The technologies demonstrated in TES are attitude and orbit control system, high torque reaction wheels, new reaction control system with optimised thrusters and a single propellant tank, light weight spacecraft structure, solid state recorder, X-band phased array antenna, improved satellite positioning system, miniaturised TTC and power system and, two-mirror-on-axis camera optics.

TES has a pan chromatic camera for remote sensing. The camera is which is capable of producing images of one metre resolution. One metre resolution means the camera is able to distinguish between two objects which are separated at least a metre.

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.[2] It is used for remote sensing of civilian areas, mapping industry and geographical information services. TES, helped the US Army with high-resolution images during the 11 September 2001 counter-terrorism offensive against the Taliban.

See also

• Indian military satellites
• Polar Satellite Launch Vehicle
• List of Indian satellites

References

External links

• ISRO PSLV C3 page

На других языках

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[de] Technology Experiment Satellite

Der Technology Experiment Satellite (kurz TES) war ein indischer Erdbeobachtungssatellit, der von der indischen Weltraumorganisation ISRO betrieben wurde. Er gehört zum Indian-Remote-Sensing-Programm.

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- [en] Technology Experiment Satellite

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[es] Technology Experiment Satellite

Technology Experiment Satellite o TES es un satélite experimental de la India lanzado por la ISRO para probar tecnologías a utilizar en satélites espía. Fue lanzado el 22 de octubre de 2001 desde la base de Sriharikota mediante un cohete PSLV a una órbita heliosincrónica de 568 km de altura, en un lanzamiento conjunto en el que también se pusieron en órbita los satélites PROBA y BIRD.

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