Showing posts with label Chandrayaan programme. Show all posts
Showing posts with label Chandrayaan programme. Show all posts

Wednesday, 20 November 2019

Chandrayaan 2: Vikram hard-landed within 500 meters of landing site: Govt

In a written reply to a question in the Lok Sabha, Jitendra Singh, said the first phase of descent was performed from an altitude of 30 kms to 7.4 kms
GSLV-MkIII-M1 rocket carrying Chandrayaan-2 lifts off from Satish Dhawan Space Centre, at Sriharikota in Nellore district of Andhra Pradesh | Photo: ISRO
Chandrayaan-2’s Vikram lander hard-landed as reduction in velocity during its descent was more than the designed parameters, the government said on Wednesday throwing more light on ISRO’s dashed hopes of making a soft landing on the lunar surface in its maiden attempt.
In a written reply to a question in the Lok Sabha, Jitendra Singh, the minister of state in the Prime Minister’s Office, who looks after the department of space, said the first phase of descent was performed nominally from an altitude of 30 kms to 7.4 kms above the moon’s surface and velocity was reduced from 1,683 metres per second to 146 metres per second.
“During the second phase of descent, the reduction in velocity was more than the designed value. Due to this deviation, the initial conditions at the start of the fine braking phase were beyond the designed parameters. As a result, Vikram hard-landed within 500 metres of the designated landing site,” he said.
Singh, however, said most components of technology demonstration, including the launch, orbital critical maneuvers, lander separation, de-boost and rough braking phase were successfully accomplished.
With regards to the scientific objectives, all the eight state-of-the-art scientific instruments of the orbiter are performing according to the design and providing valuable scientific data. Due to the precise launch and orbital maneuvers, the mission life of the orbiter is increased to seven years, he said…
Read More: Chandrayan 2

Thursday, 26 September 2019

Vikram had hard landing; NASA releases images of Chandrayaan 2 landing site

Vikram was scheduled to touch down on September. 7. This event was India’s first attempt at a soft landing on the Moon
NASA capture image of Vikram's landing site. Photo: NASA twitter
NASA on Friday released high-resolution images captured by its Lunar Reconnaissance Orbiter Camera (LROC) during its flyby of the lunar region where India’s ambitious Chandrayaan 2 mission attempted a soft landing near the Moon’s uncharted south pole, and found Vikram had a hard landing.
The Vikram lander module attempted a soft landing on a small patch of lunar highland smooth plains between Simpelius N and Manzinus C craters before losing communication with ISRO on September 7. “Vikram had a hard landing and the precise location of the spacecraft in the lunar highlands has yet to be determined, NASA said. The scene was captured from a Lunar Reconnaissance Orbiter Camera Quickmap fly-around of the targeted landing site image width is about 150 kilometres across the centre.
Vikram was scheduled to touch down on September. 7. This event was India’s first attempt at a soft landing on the Moon. The site was located about 600 kilometres from the south pole in a relatively ancient terrain, according to the US space agency.
The LRO passed over the landing site on September 17 and acquired a set of high-resolution images of the area; so far the LROC team has not been able to locate or image the lander…

Tuesday, 10 September 2019

Chandrayaan-2: ISRO racing against time to get ‘Vikram’ back to life

The lander Vikram, with rover ‘Pragyan’ tucked inside it, lost communication with the ground-stations during its final descent, just 2.1 kms above the lunar surface
chandrayaan 2
ISRO is racing against time to spring ‘Vikram’ back to life and salvage the lander-rover part of the Chandrayaan-2 mission. The lander Vikram, with rover ‘Pragyan’ tucked inside it, lost communication with the ground-stations during its final descent, just 2.1 kms above the lunar surface, minutes before the planned soft-landing in the early hours of Saturday.
ISRO (Indian Space Research Organisation) said on Sunday Vikram had a “hard-landing”. The Bengaluru-headquarterd space agency on Tuesday again confirmed that the lander has been located on the lunar surface by the on-board cameras of the Chandrayaan-2 orbiter which is circling the moon in its intended orbit.
“All possible efforts are being made to establish communication with (the) lander”, ISRO further said in a tweet. A senior ISRO official associated with the mission said: “The images from the orbiter camera showed that Vikram is in single piece lying on the lunar surface; not broken into pieces. it is in a tilted position. It’s not in its four legs, as usual”…

Monday, 15 July 2019

Spectators miffed as Chandrayaan 2 launch fails due to technical snag

In spite of the odd time, swarms of lovers had achieved the island, some of them voyaging long separations on bikes, to observe the noteworthy minute
Chandrayaan 2 launch postponed
Fans of any age who had accumulated in Sriharikota on Monday to observe the dispatch of Chandrayaan-2 were left demoralized as India’s subsequent mission to Moon was canceled because of a specialized tangle not exactly an hour prior to lift off. The commencement to the dispatch of Chandrayaan-2 locally available GSLVMkIII-M1- – planned for 2.51 am- – was ceased 56 minutes and 24 seconds before lift off at 1.55 am.
Perplexity won for a few minutes before the Indian Space Research Organization (ISRO) affirmed that the dispatch had been dropped after a specialized obstacle was recognized in one of the dispatch frameworks of the GSLVMkIII-M1. In spite of the odd time, crowds of fans had achieved the island, some of them voyaging long separations on bikes, to observe the memorable minute.
In any case, the on edge men, ladies and youngsters who were holding up anxiously at an exceptional exhibition as of late set up by ISRO left the setting frustrated as the mission did not go true to form. Chandrayaan-2 would have made India the fourth nation to delicate land a meanderer on the lunar surface after Russia, the United States and China.
ISRO had set up the exhibition – initiated by Chairman K Sivan a couple of months prior – on the rambling Sriharikota premises as the quantity of observers going up to observer the dispatches had been expanding after some time. The space office had a week ago held enlistments for individuals who needed to observe the dispatch of Chandrayaan-2.

14th BRICS summit to review current global issues, reach key agreements

  At the   14th BRICS summit   which is to be hosted by China in a virtual mode on 23-24 June, the member nations will review the current gl...