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posted by martyb on Friday August 23 2019, @04:40AM   Printer-friendly
from the wishing-them-good-luck dept.

Chandrayaan-2 Latest Updates:

August 20, 2019

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.

August 21, 2019

Second Lunar bound orbit maneuver for Chandrayaan-2 spacecraft was performed successfully today (August 21, 2019) beginning at 1250 hrs IST as planned, using the onboard propulsion system. The duration of the maneuver was 1228 seconds. The orbit achieved is 118 km x 4412 km.

All spacecraft parameters are normal.

The next Lunar bound orbit maneuver is scheduled on August 28, 2019 between 0530 - 0630 hrs IST.

Previously:
Chandrayaan-2 Launch: How to Watch First Mission to the Moon's South Pole Mon 20190722 @ 0913 UTC
Scrubbed Chandrayaan 2 Mission to Moon's South Pole to Launch on Mon July 22 0913 UTC
India's Lunar Spacecraft Launches Sunday on First-Ever Mission to Moon's South Pole
India to Launch Combined Orbiter/Lander/Rover Mission


Original Submission

Related Stories

India to Launch Combined Orbiter/Lander/Rover Mission 16 comments

The India Space Research Organisation (ISRO) in July is planning to launch a triple-threat mission to the Moon. The Chandrayaan-2 mission, will launch July 14 at 5:51 p.m. EDT (2151 GMT).

The Chandrayaan-2 mission will include an orbiter, a lander "Vikram" and a rover "Pragyan".

After launch, Chandrayaan-2 will spend about 16 days orbiting Earth, raising its orbit slowly over time before heading to the moon, the Times of India reported. It should take the mission about five days to reach the moon, after which Chandryaan-2 will spend 27 days in lunar orbit before releasing the Vikram lander.

If all goes well, Vikram will touch down near the moon's south pole on Sept. 6 in what promises to be a harrowing 15-minute landing sequence, ISRO officials have said.

"The 15-minute operation - in which Vikram makes the final descent and soft-lands - will be the most terrifying as we have never attempted such a complex mission," ISRO chairman K Sivan said in a June 11 press conference according to the Times of India.

The solar-powered Vikram is expected to deploy the small Pragyan rover about four hours after landing. Together, the lander and rover are designed to last about one lunar day (14 Earth days) on the moon's surface, while the Chandrayaan-2 orbtier[sic] continues its mission for a full year, according to an ISRO overview.

Similar to the ill-fated Beresheet lander, the Vikram lander is carrying

a NASA experiment called the Laser Retro-reflector Array for Lunar Landers, a mirror-like device designed to reflect laser signals that can be used to pinpoint the Vikram lander's location and measure the distance between the Earth and moon.

In all the Orbiter, Lander, and Rover carry 13 different scientific instruments between them to study the moon from orbit and the surface, 8 of which are on the orbiter and will continue functioning long after the lander and rover.


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India's Lunar Spacecraft Launches Sunday on First-Ever Mission to Moon's South Pole 11 comments

India's Lunar Spacecraft Launches Sunday on First-Ever Mission to Moon's South Pole:

Fifty years after Armstrong and Aldrin first landed on the moon, a historic new moon landing mission is readying for launch. After several delays, the Indian Space Research Organization (ISRO) is set to launch the Chandrayaan-2 mission this Sunday with plans to become the first nation to land at the lunar south pole. It won't feature humans, but Chandrayaan-2 is carrying three lunar exploration robots able to survey the moon from both the surface and the sky.

The launch is currently scheduled for Sunday, July 14 at 2:21 p.m. PT [2121 UTC] and will take place at India's Satish Dhawan Space Centre in Sriharikota, north of Chennai. The payload of Chandrayaan-2 consists of a lunar orbiter, a lunar lander and a lunar rover, and will be launched atop the ISRO-developed GSLV Mk-III rocket. That rocket is about half as powerful as the SpaceX Falcon 9 and will put Chandrayaan-2 into what is known as an "Earth parking orbit" before the module uses its own power to extend its orbit and eventually position itself for a lunar rendezvous.

[...] Provided Chandrayaan-2 launches on time, it is expected to reach the moon on Sept. 6, 2019. If it can achieve the difficult feat of landing on the surface, India will become just the fourth nation to complete a soft landing in history, following the US, Russia and China, which currently has the Chang'e 4 rover operating on the far side of the moon.

The lander and rover are headed for the lunar south pole, exploring a scientifically important region that has been shown to contain water ice. The lunar lander, known as "Vikram," and a rover, known as "Pragyan," will set up shop in the south, far further than any previous mission to the moon. The proposed landing spot is between two craters, Manzinus C and Simpelius N.

There is a YouTube video of the prior and proposed moon landing sites.


Original Submission

Scrubbed Chandrayaan 2 Mission to Moon's South Pole to Launch on Mon July 22 0913 UTC 3 comments

Scrubbed Chandrayaan 2 Mission to Moon's South Pole now set to Launch on July 22:

Chandrayaan 2, India's exploration mission to the moon's south pole, is set to fly to the moon on July 22. The launch, which has suffered several delays was originally scheduled for July 14, but the Indian Space Research Organization (ISRO) postponed Chandrayaan 2's departure less than an hour before launch due to a "technical snag."

The landmark mission is now set to depart a few days after the 50th anniversary of Apollo 11, humanity's first crewed lunar landing, with the goal of making the first soft landing at the lunar south pole. India's mission isn't slated to feature humans, rather, Chandrayaan 2 is carrying three lunar exploration robots -- a lander, rover and orbiter -- that will be able to survey the moon from both the surface and the sky.

The launch is set to take place at India's Satish Dhawan Space Centre in Sriharikota, north of Chennai, at the revised (and slightly unfriendly time) of 2:13 a.m. PT (5:13 a.m. ET), Monday July 22.

The payload of Chandrayaan-2 consists of a lunar orbiter, a lunar lander and a lunar rover and will be launched atop the ISRO-developed GSLV Mk-III rocket. That rocket is about half as powerful as the SpaceX Falcon 9 and will put Chandrayaan-2 into what's known as an "Earth parking orbit" before the module uses its own power to extend its orbit and eventually position itself for a lunar rendezvous.

How to watch the Chandrayaan-2 launch

Want to tune in to the historic mission? During the first run of the mission on July 14, ISRO handled livestreaming duties across its social media pages, which meant you could tune in at the ISRO Twitter or follow along on the agency's Facebook page. India's public broadcaster Doordarshan also carried a livestream on its YouTube channel. There's plenty of options and it's a good bet they will all be on the table for the rescheduled launch -- but until we get official confirmation of the new launch date and time, we can't be certain.

(Emphasis in original retained.)


Original Submission

Chandrayaan-2 Launch: How to Watch First Mission to the Moon's South Pole Mon 20190722 @ 0913 UTC 9 comments

Chandrayaan-2 Launch: How to Watch First Mission to the Moon's South Pole:

India's exploration mission to the moon is readying for launch. The Chandrayaan-2 mission, aiming to put robots at the lunar south pole for the first time, has suffered several delays leading up to lift-off. It was originally scheduled for July 14 but the Indian Space Research Organization (ISRO) postponed the departure less than an hour before launch due to a "technical snag."

The landmark mission is now set to depart from India's Satish Dhawan Space Centre in Sriharikota, north of Chennai, at 2:13 a.m. PT (5:13 a.m. ET), Monday July 22. [...] Chandrayaan-2 is carrying three lunar exploration robots that will be able to survey the moon from both the surface and the sky.

The payload of Chandrayaan-2 consists of a lunar orbiter, a lunar lander and a lunar rover and will be launched atop the ISRO-developed GSLV Mk-III rocket. That rocket is about half as powerful as the SpaceX Falcon 9 and will put Chandrayaan-2 into what's known as an "Earth parking orbit" before the module uses its own power to extend that orbit and eventually position itself for a lunar rendezvous.

Want to tune in to the historic mission? ISRO will handle livestreaming duties across its social media pages, which means you could tune in at the ISRO Twitter or follow along on the agency's Facebook page. The agency's YouTube channel is also covering the event.

The launch is also to be carried by the Indian public broadcaster Doordarshan's YouTube channel.

Previously: Scrubbed Chandrayaan 2 Mission to Moon's South Pole to Launch on Mon July 22 0913 UTC.


Original Submission

Chandrayaan-2: India's Vikram Lander Presumed to Have Crashed 26 comments

ISRO lose contact with Chandrayaan-2 lander during final descent

Following a historic July 22 launch on a GSLV Mk-III rocket from the east coast of India, the Chandrayaan-2 spacecraft – the robotic lander and rover, specifically – attempted a soft landing on the surface of the Moon on Friday. All was proceeding to plan until just 2km above the surface when telemetry was lost and the vehicle will have likely crashed into the lunar surface.

[...] The Vikram lander was aiming to softly touch down about 350 kilometers (218 miles) away from the South Pole-Aitken Basin rim on Friday evening. However, with all proceeding to plan, including the braking phase of the mission ahead of final descent, telemetry was lost.

[...] Although no explanation was provided, it is clear the mission has failed.

Also at NYT and India Today.

Previously: Chandrayaan-2 Updates: Lunar Orbit Insertion and Lunar Orbit Maneuver


Original Submission

India's Vikram Lander Has Been Found 17 comments

NASA (USA's National Aeronautics and Space Administration) reports that India's Vikram Lander has been Found:

The Chandrayaan 2 Vikram lander was targeted for a highland smooth plain about 600 kilometers from the south pole; unfortunately the Indian Space Research Organisation (ISRO) lost contact with their lander shortly before the scheduled touchdown (Sept. 7 in India, Sept. 6 in the United States).  Despite the loss, getting that close to the surface was an amazing achievement. The Lunar Reconnaissance Orbiter Camera team released the first mosaic (acquired Sept. 17) of the site on Sept. 26 and many people have downloaded the mosaic to search for signs of Vikram. Shanmuga Subramanian contacted the LRO project with a positive identification of debris. After receiving this tip, the LROC team confirmed the identification by comparing before and after images. When the images for the first mosaic were acquired the impact point was poorly illuminated and thus not easily identifiable. Two subsequent image sequences were acquired on Oct. 14 and 15, and Nov. 11. The LROC team scoured the surrounding area in these new mosaics and found the impact site (70.8810°S,  22.7840°E, 834 m elevation) and associated debris field. The November mosaic had the best pixel scale (0.7 meter) and lighting conditions (72° incidence angle).

The debris first located by Shanmuga is about 750 meters northwest of the main crash site and was a single bright pixel identification in that first mosaic (1.3 meter pixels, 84° incidence angle). The November mosaic shows best the impact crater, ray and extensive debris field. The three largest pieces of debris are each about 2x2 pixels and cast a one pixel shadow.

See the NASA article for before/after pictures of the impact site.

Previously:
NASA Lunar Probe Will Help Search for India's Lost Moon Lander
Time is Running Out for India to Establish Contact With its Lunar Lander
India Locates Lander Lost on Final Approach to Moon
Chandrayaan-2: India's Vikram Lander Presumed to Have Crashed
Chandrayaan-2 Updates: Lunar Orbit Insertion and Lunar Orbit Maneuver
Chandrayaan-2 Launch: How to Watch First Mission to the Moon's South Pole Mon 20190722 @ 0913 UTC
Scrubbed Chandrayaan 2 Mission to Moon's South Pole to Launch on Mon July 22 0913 UTC
India's Lunar Spacecraft Launches Sunday on First-Ever Mission to Moon's South Pole
India to Launch Combined Orbiter/Lander/Rover Mission
India's Chandrayaan-2 Moon Mission Planned for 2018


Original Submission

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  • (Score: 2) by Pslytely Psycho on Friday August 23 2019, @04:58AM (1 child)

    by Pslytely Psycho (1218) on Friday August 23 2019, @04:58AM (#883921)

    114 km x 18072 km

    Ah, a very Kerbal orbit for sure......

    https://www.youtube.com/watch?v=5uqpdoFCOMM [youtube.com]

    --
    Alex Jones lawyer inspires new TV series: CSI Moron Division.
    • (Score: 3, Funny) by mhajicek on Friday August 23 2019, @05:23AM

      by mhajicek (51) on Friday August 23 2019, @05:23AM (#883929)

      Let's hope they can avoid excessive lithobreaking.

      --
      The spacelike surfaces of time foliations can have a cusp at the surface of discontinuity. - P. Hajicek
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