Ohsin, to random
@Ohsin@mastodon.social avatar

India's lunar lander barely kicked up any moon dust.

https://www.space.com/india-chandrayaan-3-lunar-lander-moon-dust

itnewsbot, to science
@itnewsbot@schleuss.online avatar

India reveals that it has returned lunar spacecraft to Earth orbit - Enlarge / India's Chandrayaan-3 lunar spacecraft undergoes accoustic te... - https://arstechnica.com/?p=1988573

revesdespace, to random French

🌑➡️🌏 Le module de propulsion de la mission qui avait amené l’atterrisseur en orbite lunaire, a été déplacé de cette orbite autour de la Lune vers une orbite terrestre après plusieurs manœuvres réalisées en octobre et novembre
📷 ISRO
https://www.isro.gov.in/Ch3_Propulsion_Module_moved_from_Lunar_orbit_to_Earth_orbit.html

indianewswatch, to ukteachers
@indianewswatch@kolektiva.social avatar

NCERT Reading Modules Credit Modi for Success of Chandrayaan-3, Mix Space Science with Vedas

Space science experts say the special supplementary reading modules by NCERT on the Chandrayaan mission do injustice to ISRO and its scientists, who have over the years bounced back from every failure in their way.

https://thewire.in/education/ncert-reading-modules-credit-modi-for-success-of-chandrayaan-3-mix-space-science-with-vedas

absamma, to india
@absamma@toolsforthought.rocks avatar

China's top lunar scientist poo pooing 's attempt at landing closer to the South pole than others, and the power of their humbler rocket pretty much sums up as a country: an insecure bully.

https://time.com/6318208/chinese-scientist-questions-india-moon-landing-south-pole/

fraser, to random
@fraser@m.universetoday.com avatar

Day Has Returned, but India's Lander and Rover have Failed to Wake Up

After the successful landing on the Moon, ISRO's Vikram lander and Pragyaan rover had to work quickly while the Sun shone. Once the Sun set after 14 days, it was expected temperatures would drop so low that the solar-powered spacecraft would no longer be able to keep themselves warm enough. Mission controllers received the final data at the end of August and then waited for the end of the 14-day lunar night. Day has returned, but the explorers have received no messages, so it's assumed they didn't survive the night.

https://www.bbc.com/news/world-asia-india-66909524

indianewswatch, to workersrights
@indianewswatch@kolektiva.social avatar

‘No salaries in last 18 months’: Workers who made parts for ISRO satellite launches stage protest

Employees of the government-owned Heavy Engineering Corporation say they have been struggling to make ends meet. On September 17, BBC Hindi had reported that some employees of the Heavy Engineering Corporation who contributed in building a launchpad for the Indian Space Research Organisation had taken up odd jobs, including selling idlis, tea and momos, by the roadside in Ranchi.

https://scroll.in/article/1056368/no-salaries-in-last-18-months-workers-who-made-parts-for-isro-satellite-launches-stage-protest

revesdespace, to random French

🌑 : pour le moment l'ISRO n'a pas réussi à établir de communications avec l'atterrisseur et le rover au début de la sortie de la nuit lunaire, même si l'espoir est mince d'une continuité de la mission

pradx, to random
@pradx@mastodon.social avatar

Efforts made to contact have not succeeded thus far.

Link - https://x.com/isro/status/1705209835783078092?t=2MQNSdsZGE5LSNx_chEd-Q&s=08

AkaSci, (edited ) to random
@AkaSci@fosstodon.org avatar

All eyes are now on the moon again as the sun rises over India's Chandrayaan-3 lander and rover. The solar panels should be receiving sufficient solar energy by tomorrow. What remains to be seen is whether Chandrayaan-3 and its electronic systems survived the below --150°C lunar temps over the 2-week lunar night. Hopefully, some subsystems, if not all, did.

Sun elevation should be around 5° at this time (Sep 21 00:00 UTC) and increase to 9° in the next 24 hours.


1/n

AkaSci, (edited )
@AkaSci@fosstodon.org avatar

The moon phase and sunlight over the landing site of Chandrayaan-3 are shown below for tonight and tomorrow night (00:00 UTC).

https://svs.gsfc.nasa.gov/4956

2/n

AkaSci, (edited )
@AkaSci@fosstodon.org avatar

Note that since the moon does not have an atmosphere, the low elevation angle of the sun does not much affect the intensity of solar radiation at the Chandrayaan-3 site. The solar panels are oriented almost vertically and should be generating power and charging the batteries, as the rest of the spacecraft warms up.

Also, Chandrayaan-3 was not designed to survive the lunar night; it does not have an energy source for nighttime heating like other long-duration missions.


3/n

AkaSci, (edited )
@AkaSci@fosstodon.org avatar

No luck yet in establishing contact with the Chandrayaan-3 lander.
ISRO will keep trying, but the probability of success is not high.

Note that Chandrayaan-3 has completed its primary mission. Unlike some other missions, it has no heat source to survive the long cold lunar night.


4/n

thejapantimes, to worldnews
@thejapantimes@mastodon.social avatar

India's achievements in space undoubtedly strengthen its diplomatic hand, not least because of the respect they inspire in other countries. https://www.japantimes.co.jp/commentary/2023/09/05/world/india-moon-landing-pride/?utm_content=buffera8f2f&utm_medium=social&utm_source=mastodon&utm_campaign=bffmstdn

revesdespace, to random French

🌑 La mission sud-coréenne en orbite lunaire a réussi à photographié le site d’atterrissage de 🤩
https://www.youtube.com/watch?v=jreJDvK5FJs

Ohsin, to random
@Ohsin@mastodon.social avatar

lander imaged by the Dual-frequency Synthetic Aperture Radar (DFSAR) onboard the Orbiter on 6 September 2023.

https://www.isro.gov.in/Ch3Lander_imagedby_Ch2SAR.html

Can't recall seeing a radar image of a lunar lander before.

DFSAR image overlaid on LROC mosaic (QuickMap)
DFSAR image showing Vikram lander overlaid on LROC mosaic (QuickMap)

Norobiik, to space
@Norobiik@noc.social avatar

If the event is confirmed to be a moonquake, it would be the first detected on the lunar surface since the 1970s — when 's missions first studied seismic activity on the moon and detected .

A would suggest that the moon isn't just some big, dense space rock — there's actually more going on under its surface than meets the eye.

's lander detected movement near the lunar south pole.
https://www.businessinsider.com/indias-moon-lander-detects-signs-of-possible-moonquake-2023-9

fraser, to random
@fraser@m.universetoday.com avatar

As Night Falls, India's Lunar Lander/Rover Goes to Sleep. Probably Forever

After two weeks of daylight, night has finally returned to the Chandrayaan-3 landing site, shutting off its energy source and dropping the temperature precipitously. India's space agency announced that they have transferred all their data home and switched off the lander and rover, putting them into safe mode. The lander and rover were only designed to last a single lunar day, but ISRO hopes they'll somehow last through the two weeks of lunar night and wake up again - but it's a longshot.

https://www.aljazeera.com/news/2023/9/4/indias-moon-rover-completes-walk-put-into-sleep-mode

indianewswatch, to Astronomy
@indianewswatch@kolektiva.social avatar

How Scientists Meghnad Saha, J.V. Narlikar Rubbished Claim of Vedic Roots of Modern Science

“If superior knowledge in astronomy, aeronautical engineering, etc., is available in the ancient texts in Sanskrit, why isn’t the ISRO using them? Can (S. Somanath) show one piece of technology or theory that ISRO has taken from the Vedas and applied to make a rocket or a satellite?”

https://science.thewire.in/the-sciences/how-scientists-meghnad-saha-j-v-narlikar-rubbished-claim-of-vedic-roots-of-modern-science/

stim3on, to random
@stim3on@fosstodon.org avatar
spaceflight, to random
@spaceflight@techhub.social avatar
spaceflight,
@spaceflight@techhub.social avatar

🇮🇳 : it is possible that the extreme cold of the lunar night damaged the 🔋. Night 🌑 temperatures near the south pole routinely plunge to -200C to -250C ❄️ https://www.bbc.com/news/world-asia-india-66893924

kenthebin, to random
@kenthebin@spacey.space avatar

The Chandrayaan-3 Lunar Landing is planned for Wed Aug 23 at 12:17 UTC.

ISRO webcast:
https://www.youtube.com/watch?v=DLA_64yz8Ss

https://www.isro.gov.in/Chandrayaan3SoftLandingMessage.html

kenthebin,
@kenthebin@spacey.space avatar

As lunar day dawns at the landing site, there are unofficial reports of radio signals received.

So it appears that Chandrayaan-3 survived the lunar night with at least some functionality intact.

Here's hoping for some official good news from ISRO in the near future.

Edit: False alarm, see next post.

kenthebin,
@kenthebin@spacey.space avatar

Bad news. It appears that the radio signals are actually a sideband from NASA's Lunar Reconnaissance Orbiter and not from Chandrayaan-3. 🙁

Of course that doesn't mean that Chandrayaan-3 didn't survive. It just means that we're back to not knowing anything yet.

kenthebin,
@kenthebin@spacey.space avatar

Update from ISRO:

"Chandrayaan-3 Mission:
Efforts have been made to establish communication with the Vikram lander and Pragyan rover to ascertain their wake-up condition.

As of now, no signals have been received from them.

Efforts to establish contact will continue."

Ohsin, to random
@Ohsin@mastodon.social avatar

Hacked up a little graphic :P

https://commons.wikimedia.org/wiki/File:Chandrayaan-3_Lander_Powered_Descent_Profile.svg

@wikimediafoundation

@inkscape

Ohsin,
@Ohsin@mastodon.social avatar

@wikimediafoundation @inkscape

Kinda nice that it is being used in official presentations! 😊

https://www.youtube.com/watch?v=r0_ZrhUb0S8&t=1606s

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