GREENBELT, Md. (NASA PR) — The Chandrayaan-2 lander, Vikram, attempted a landing Sept. 7 (Sept. 6 in the United States), on a small patch of lunar highland smooth plains between Simpelius N and Manzinus C craters. Vikram had a hard landing and the precise location of the spacecraft in the lunar highlands has yet to be determined.
The lander, Vikram, was scheduled to touch down on Sept. 6 at 4:24 pm Eastern Daylight Time. This event was India’s first attempt at a soft landing on the Moon. The site was located about 600 kilometers (370 miles) from the south pole in a relatively ancient terrain (70.8°S latitude, 23.5°E longitude). In order to visualize the site, take a quick fly-around.
The Lunar Reconnaissance Orbiter (LRO) passed over the landing site on Sept. 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. It was dusk when the landing area was imaged and thus large shadows covered much of the terrain; it is possible that the Vikram lander is hiding in a shadow.
The lighting will be favorable when LRO passes over the site in October and once again attempts to locate and image the lander.
Well, it’s not the famous winter of Game of Thrones, but the 14-day lunar night has arrived where India’s Vikram lander and Pragyan rover made what IRSO officials have called a “hard landing” two weeks ago with no communication between them and ground controllers.
Since neither vehicle was designed to survive the frigid temperatures of the lunar night, the Indian space agency has called it a day in a rather bare bones announcement.
ISRO’s Chandrayaan-2’s orbiter has spotted the Vikram lander in the surface of the moon, but it’s not looking very good.
“Yes, we have located the lander on the lunar surface. It must have been a hard landing,” Sivan told PTI….
Asked if the lander was “damaged” during the “hard landing”, Sivan said: “That we do not know.”
Sivan had said on Saturday that the space agency would try to establish link with the lander for 14 days and reiterated on Sunday after it was located on the lunar surface by Chandrayaan-2’s on-board cameras that those efforts would continue.
Fourteen days is the length of a lunar day. The lander and the Pragyan rover it carried are not designed to survive the frigid cold of the lunar night.
The Vikram lander stopped communicating with ground controllers as it descended toward a landing near the moon’s south pole. ISRO said the loss of communications occurred less than 2 km (1.25 miles) above the surface.
Chandrayaan-2 is India’s second mission to the moon and first attempt to land a payload on the surface.
ISRO has provided an update on its failed attempt to place Chandrayaan-2’s Vikram lander and Pragyan rover on the moon:
“The Vikram Lander followed the planned descent trajectory from its orbit of 35 km to just below 2 km [1.25 miles] above the surface. All the systems and sensors of the Lander functioned excellently until this point and proved many new technologies such as variable thrust propulsion technology used in the Lander.
The success criteria was defined for each and every phase of the mission and till date 90 to 95% of the mission objectives have been accomplished and will continue contribute to Lunar science , notwithstanding the loss of communication with the Lander.
ISRO stressed that the Chandrayaan-2 Orbiter continues to circle the moon and is expected to return a wealth of scientific data:
India’s first attempt to place a lander and a rover on the surface of the moon might have failed on Friday.
ISRO officials say that descent operations of Chandrayaan-2’s Vikram lander were normal until it reached 2.1 km above the landing spot near the south pole before all telemetry ceased. ISRO said it is evaluating the data.
It is not clear whether the lander crashed along with its Pragyar rover or if there was a communications glitch. The Chandrayaan-2 orbiter is functioning normally, ISRO said.
The first de-orbiting maneuver for Chandrayaan-2 spacecraft was performed successfully today (September 03, 2019) beginning at 0850 hrs IST as planned, using the onboard propulsion system. The duration of the maneuver was 4 seconds.
The orbit of Vikram Lander is 104 km x 128 km.
Chandrayaan-2 Orbiter continues to orbit the Moon in the existing orbit
and both the Orbiter and Lander are healthy.
The next de-orbiting maneuver is scheduled on September 04, 2019 between 0330 – 0430 hrs IST.
The Vikram Lander successfully separated from Chandrayaan-2 Orbiter at 1315 Hrs IST today (September 02, 2019). The Vikram Lander is currently located in an orbit of 119 km x 127 km. The Chandrayaan-2 Orbiter continues to orbit the Moon in its existing orbit.
The health of the Orbiter and Lander is being monitored from the Mission Operations Complex (MOX) at ISRO Telemetry, Tracking and Command Network (ISTRAC) in Bengaluru with support from Indian Deep Space Network (IDSN) antennas at Bylalu, near Bengaluru. All the systems of Chandrayaan-2 Orbiter and Lander are healthy.
The next maneuver is scheduled tomorrow (September 03, 2019) between 0845-0945 hrs IST
BENGALURU, India (ISRO PR) — A Press Meet was organised today (August 20, 2019) at ISRO Headquarters, Bengaluru on the occasion of Lunar Orbit Insertion (LOI) of Chandrayaan-2 spacecraft. Dr K Sivan, Chairman, ISRO addressed and interacted with several regional, national and international media persons during the meet. The live telecast of this meet was made available on ISRO website and You tube Channel.
Bengaluru, India (ISRO PR) — Lunar Orbit Insertion (LOI) maneuver was completed successfully today (August 20, 2019). The duration of maneuver was 1738 seconds beginning from 0902 hrs IST. With this, Chandrayaan-2 was successfully inserted into a Lunar orbit. The orbit achieved is 114 km x 18072 km.
Following this, a series of orbit maneuvers will
be performed on Chandrayaan-2 spacecraft to enable it to enter its final
orbit passing over the lunar poles at a distance of about 100 km from
the Moon’s surface.
Subsequently, the lander will separate from the
Orbiter and enters into a 100 km X 30 km orbit around the Moon. Then,
it will perform a series of complex braking maneuvers to soft land in
the South polar region of the Moon on September 7, 2019.
The health of the spacecraft is being continuously
monitored from the Mission Operations Complex (MOX) at ISRO Telemetry,
Tracking and Command Network (ISTRAC) in Bengaluru with support from
Indian Deep Space Network (IDSN) antennas at Bylalu, near Bengaluru. All
the systems of Chandrayaan-2 are healthy.
The next Lunar bound orbit maneuver is scheduled tomorrow (August 21, 2019) between 1230-13:30 hrs IST.
BENGALURU, India (ISRO PR) — The final orbit raising manoeuvre of Chandrayaan-2 spacecraft was successfully carried out today (August 14, 2019) at 02:21 am IST. During this maneuver, the spacecraft’s liquid engine was fired for about 1203 seconds. With this, Chandrayaan-2 entered the Lunar Transfer Trajectory. Earlier, the spacecraft’s orbit was progressively increased five times during July 23 to August 06, 2019.
SRIHARIKOTA, India (ISRO PR) — India’s Geosynchronous Satellite Launch Vehicle GSLV MkIII-M1, successfully launched the 3,840 kg Chandrayaan-2 spacecraft into an earth orbit today (July 22, 2019). The spacecraft is now revolving round the earth with a perigee (nearest point to Earth) of 169.7 km and an apogee (farthest point to Earth) of 45,475 km. Today’s flight marks the first operational flight of the GSLV Mk III.
ISRO scrubbed the launch of its Chandrayaan 2 lunar mission on Monday. The Indian space agency was not forthcoming about the cause of the problem with the GLSV Mk. III booster:
A technical snag was observed in launch vehicle system at one hour before the launch. As a measure of abundant precaution Chandrayaan-2 launch has been called off for today. Revised launch date will be announced later.
NDTV reported: “Sources said the snag was in the cryogenic stage or last stage of the rocket before it separates.” NDTV did not provide additional details.
India’s second lunar flight is the nation’s most ambitious space exploration mission ever. Chandrayaan 2 consists of an orbiter, a lander and a rover. The orbit is scheduled to function for at least one year. The lander and rover will last one lunar day (about Earth 14 days).
UPDATE: The launch was scrubbed due to a technical problem with the booster. ISRO has not announced a new launch date yet.
India is aiming for the moon for the second time with the most ambitious space mission the nation has ever attempted. On Monday, the GSLV-Mk III booster is set to launch the Chandrayaan 2 mission, which includes an orbiter, lander and rover.
Live coverage begins on the ISRO website on Monday, July 15 at 02:30 hrs (Sunday, July 14 at 2100 UTC/5 pm EDT/2 pm PDT).
Below are details taken from the ISRO Chandrayaan 2 mission kit.
India has decided to once again postpone the launch of its ambitious Chandrayaan-2 lunar mission out of an abundance of caution.
Earlier this year, the ISRO had launched GSAT-6A, a military communication satellite, but lost communication with it. Following this, the ISRO also recalled the launch of GSAT-11 from from Kourou, French Guiana, for additional technical checks. Last September, the PSLV- C39 mission, carrying the IRNSS-1H navigation satellite, failed after the heat shield refused to open and release the satellite….
“We don’t want to take any risk,” said the official, requesting anonymity. The official added that there are certain windows during which the mission could be launched. The next launch window is likely to be in January. Repeated attempts to solicit a response from ISRO chairman K. Sivan were not successful.
In April, Mr. Sivan informed the government about the postponement of the launch to October-November. A national-level committee to review Chandrayaan-2 recommended some additional tests before the mission could take off.
The mission will put an orbiter around the moon and a lander and rover on the surface. It is a follow-on to the successful Chandrayaan-1 orbiter.