Technology Experiment Satellite

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Technology Experiment Satellite
Mission type Earth Observation
Photo-reconnaissance
Operator NTRO
COSPAR ID 2001-049A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 26957
Website ISRO: PSLV-C3
Mission durationElapsed: 20 years, 10 months and 1 day
Spacecraft properties
Manufacturer ISRO
LPSC
Launch mass1108 kg
Start of mission
Launch date22 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
 

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

Contents

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

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References

  1. "TES: Trajectory 2001-049A". nssdc.gsfc.nasa.gov. NASA. 17 April 2020. Retrieved 14 May 2020.PD-icon.svgThis article incorporates text from this source, which is in the public domain .
  2. BBC News: India's spy satellite boost