What happened to Chandrayan 2 1
India: lunar probe and comsat need to be checked
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After the early failure of the recently launched Indian communications satellite GSAT 6A, the Indian Space Research Organization (ISRO) is probably playing it safe. The Chandrayaan 2 lunar probe and the GSAT 11 communications satellite will undergo additional tests.
GSAT 6A in space - illustration
Most recently, the satellite was observed on an orbit inclined around 3.3 degrees to the earth's equator with an orbit point closest to the earth 25,986 kilometers above the earth and an orbit furthest away from the earth 36,377 kilometers above the earth. Its path changed only by nuances after the communication breakdown.
GSAT 6A during tests on the ground
In an interview with journalists, S. Somanath wanted to rule out sabotage during the construction of the satellite. The satellite systems were repeatedly tested during construction. Scientists were still trying to regain control of the spacecraft. It cannot be completely ruled out that the satellite may or may not be able to switch to a so-called safety mode ("safemode") in which it will eventually react to radio signals at some point.
Chandrayaan 2 in configuration for the flight to the moon - illustration
Chandrayaan 2: Rover Leaves Lander - Illustration
Chandrayaan 1 had reached a lunar orbit on November 8, 2008. She then worked until August 29, 2009. Improvements to Chandrayaan 2 include thermal management. At Chandrayaan 1, the energy input through the reflection of the moon's surface had caused serious temperature problems on board the probe, Raumfahrer.net reported.
GSAT 11 illustration
There is currently no official confirmation from the launch provider Arianespace or the Indian satellite operator regarding the postponement of the launch for GSAT 11. Observers of the Indian space program are certain that the VA243 mission will probably not be able to start in May 2018. Via the short message service Twitter it is spread that VA243 has currently the status "canceled", Indian personnel have started their way back to India.
Unloading the transport container with GSAT 11 in French Guiana
(Image: ESA / CNES / Arianespace / CSG)
It should also be emphasized that GSAT 11 has for the first time a main body that consists of the combination of two basic structural elements. One of the elements is previously more or less common for bus systems and payload components with a classic central tube, the second additional element is one for additional payload and with its own central tube section.
Basic structural elements of GSAT 11
In order to be able to fulfill its tasks during its design service life of at least 15 years, the satellite - a construction that is based on the new Indian satellite bus I-6K - is equipped with a total of 40 transponders that are installed at the ISRO Space Applications Center (SAC) originated in Ahmedabad. Solar cells on two newly developed arms, which can supply the GSAT 11 systems with an electrical output of up to 11 kilowatts, serve to generate energy.
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