#luna25 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #luna25, aggregated by home.social.
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Here's a closeup of the Luna 25 impact site. All these impacts from orbit show a faint downrange ejecta fan, not the roughly symmetrical bright ejecta expected for a natural hypervelocity impact. One very important factor here is LRO which has imaged basically the entire surface of the Moon multiple times, so there is pretty much always going to be a pre-impact image, often with similar lighting.
Tomorrow - a quick look ahead to Russia's future lunar plans.
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Here's a closeup of the Luna 25 impact site. All these impacts from orbit show a faint downrange ejecta fan, not the roughly symmetrical bright ejecta expected for a natural hypervelocity impact. One very important factor here is LRO which has imaged basically the entire surface of the Moon multiple times, so there is pretty much always going to be a pre-impact image, often with similar lighting.
Tomorrow - a quick look ahead to Russia's future lunar plans.
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Here we zoom in on the Luna 25 impact site. The location was shown in the context map yesterday. How do we know this is the impact site? Here is the LRO camera page on it:
https://lroc.im-ldi.com/images/1311
The location was predicted by mathematicians at the Keldysh Institute, and 2 km away is a small crater with a south-facing spray of ejecta which was not there 2 years earlier. It's what we expect, close to where we expect, so very likely to be the impact.
#maps #moon #luna25 -
Here we zoom in on the Luna 25 impact site. The location was shown in the context map yesterday. How do we know this is the impact site? Here is the LRO camera page on it:
https://lroc.im-ldi.com/images/1311
The location was predicted by mathematicians at the Keldysh Institute, and 2 km away is a small crater with a south-facing spray of ejecta which was not there 2 years earlier. It's what we expect, close to where we expect, so very likely to be the impact.
#maps #moon #luna25 -
This map shows the crater Zeeman, location of the only images known to have been taken from orbit. Surface composition was measured by one instrument but I have not located the observation site yet. A dust detector collected data in orbit 2 days before the crash. So there was some small science return from the mission.
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This map shows the crater Zeeman, location of the only images known to have been taken from orbit. Surface composition was measured by one instrument but I have not located the observation site yet. A dust detector collected data in orbit 2 days before the crash. So there was some small science return from the mission.
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At last we get to Luna 25 itself. It would have been an interesting mission. Here is the NSSDCA page for it:
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2023-118A
A robotic arm would collect a sample from a small workspace close to the lander and deliver it to the lander for analysis. This would be repeated once a month for a year. But it was not to be. Flight control issues caused a braking overburn which caused a crash northeast of the target site. This map puts it into context.
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At last we get to Luna 25 itself. It would have been an interesting mission. Here is the NSSDCA page for it:
https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2023-118A
A robotic arm would collect a sample from a small workspace close to the lander and deliver it to the lander for analysis. This would be repeated once a month for a year. But it was not to be. Flight control issues caused a braking overburn which caused a crash northeast of the target site. This map puts it into context.
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I'm showing these maps to illustrate the number of sites suggested over the last 15 years for Luna 25 and its precursors. By about 2018 the mission name was settling on Luna 25. The 3 sites shown as preferred are the final sites, shown in this map in more detail. Site 6, north of Boguslawsky, was the primary landing site for Luna 25. White outlines show safest areas in the ellipses from a 2021 study. Now we can move on to the actual mission.
#maps #moon #luna25 -
I'm showing these maps to illustrate the number of sites suggested over the last 15 years for Luna 25 and its precursors. By about 2018 the mission name was settling on Luna 25. The 3 sites shown as preferred are the final sites, shown in this map in more detail. Site 6, north of Boguslawsky, was the primary landing site for Luna 25. White outlines show safest areas in the ellipses from a 2021 study. Now we can move on to the actual mission.
#maps #moon #luna25 -
The next mission was going to be Luna-Resurs (= resource), which would study potential lunar resources such as polar volatiles. Later Luna-Resurs was taken as the name of a sequence of landers and Luna-Glob was the first of them. Later still the sequence took the names Luna 25, 26, 27 and so on to show continuity with past missions. India joined for a while with an Indian rover on a Russian lander so the name Chandrayaan was used too.
#moon #Luna25 -
The next mission was going to be Luna-Resurs (= resource), which would study potential lunar resources such as polar volatiles. Later Luna-Resurs was taken as the name of a sequence of landers and Luna-Glob was the first of them. Later still the sequence took the names Luna 25, 26, 27 and so on to show continuity with past missions. India joined for a while with an Indian rover on a Russian lander so the name Chandrayaan was used too.
#moon #Luna25 -
🇮🇳 #India’s budgetary allocation for its space programme is $1.55bn - #NASA’s budget for the year is $25bn 💰. India spent $74m on the #Mars 🔴 orbiter #Mangalyaan and $75m on #Chandrayaan3. NASA’s #Maven orbiter had cost $582m 💰 and Russia’s #Luna25 $133m. #ISRO employs far fewer people and pays lower salaries, which makes Indian projects competitive 💪 https://www.bbc.com/news/articles/cn9xlgnnpzvo
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🇮🇳 #India’s budgetary allocation for its space programme is $1.55bn - #NASA’s budget for the year is $25bn 💰. India spent $74m on the #Mars 🔴 orbiter #Mangalyaan and $75m on #Chandrayaan3. NASA’s #Maven orbiter had cost $582m 💰 and Russia’s #Luna25 $133m. #ISRO employs far fewer people and pays lower salaries, which makes Indian projects competitive 💪 https://www.bbc.com/news/articles/cn9xlgnnpzvo
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Der nicht lange Flug der langerwarteten Mondsonde Luna-25
RIA Nowosti veröffentlicht Bilanz der russischen Raumfahrt 2023. Ein Beitrag von Gerhard Kowalski. (Grafik: Roscosmos) #roscosmos #Luna25 #kowalski
https://www.raumfahrer.net/der-nicht-lange-flug-der-langerwarteten-mondsonde-luna-25/ -
Der nicht lange Flug der langerwarteten Mondsonde Luna-25
RIA Nowosti veröffentlicht Bilanz der russischen Raumfahrt 2023. Ein Beitrag von Gerhard Kowalski. (Grafik: Roscosmos) #roscosmos #Luna25 #kowalski
https://www.raumfahrer.net/der-nicht-lange-flug-der-langerwarteten-mondsonde-luna-25/ -
@ChrisO_wiki WTF? 😬 Muscovy 🇷🇺 you could land #Luna25 successfully on the 🌖
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@ChrisO_wiki WTF? 😬 Muscovy 🇷🇺 you could land #Luna25 successfully on the 🌖
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GK Roskosmos: Luna-25 höchstwahrscheinlich wegen einer Fehlfunktion des Bordsteuerungskomplexes abgestürzt. Ein Beitrag von Gerhard Kowalski. (Bild: Roskosmos) #kowalski #Luna25
https://www.raumfahrer.net/inhalte/ -
Space activities:
Roscosmos issued a statement on their Telegram channel regarding the mishap involving Luna-25 impacting the moon.
Basically it was wrongly programmed, and the burn to move it from a circular Lunar orbit to a pre-landing elliptical orbit lasted 43 seconds longer than intended. As a result, the moon was propelled into an undesired trajectory causing the collision with the spacecraft, against the orders of the Kremlin.... or something like that.
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Space activities:
Roscosmos issued a statement on their Telegram channel regarding the mishap involving Luna-25 impacting the moon.
Basically it was wrongly programmed, and the burn to move it from a circular Lunar orbit to a pre-landing elliptical orbit lasted 43 seconds longer than intended. As a result, the moon was propelled into an undesired trajectory causing the collision with the spacecraft, against the orders of the Kremlin.... or something like that.
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🛰️🌑 Selon le spécialiste Anatoly Zak, l’échec de #Luna25 serait dû à une panne sur l'instrument BIUS-L qui mesure la vitesse angulaire et l'accélération linéaire pour l'ordinateur de vol. Ce dernier n’aurait pas eu les bonnes données pour arrêter à temps le système de propulsion.
L’article : https://www.russianspaceweb.com/luna-glob-flight.html#0916 -
🛰️🌑 Selon le spécialiste Anatoly Zak, l’échec de #Luna25 serait dû à une panne sur l'instrument BIUS-L qui mesure la vitesse angulaire et l'accélération linéaire pour l'ordinateur de vol. Ce dernier n’aurait pas eu les bonnes données pour arrêter à temps le système de propulsion.
L’article : https://www.russianspaceweb.com/luna-glob-flight.html#0916 -
It is expected that the accident board on #Luna25 will complete the investigation by the end of September, said Yuri Borisov (according to TASS). Via @katlinegrey
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It is expected that the accident board on #Luna25 will complete the investigation by the end of September, said Yuri Borisov (according to TASS). Via @katlinegrey
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A plausible scenario why #Luna25 crashed might be emerging: https://www.russianspaceweb.com/luna-glob-flight.html#0916 - as we already know a failed accelerometer caused the braking engine to burn way to long, but now what led to this may find an explanation (though the root causes of the failures of the instrument and of the flight software dealing with the issue remain to be hunted down).
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A plausible scenario why #Luna25 crashed might be emerging: https://www.russianspaceweb.com/luna-glob-flight.html#0916 - as we already know a failed accelerometer caused the braking engine to burn way to long, but now what led to this may find an explanation (though the root causes of the failures of the instrument and of the flight software dealing with the issue remain to be hunted down).
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Yuri Borisov said, #Luna25 crash was caused by the accelerometer which didn't transmit the data necessary to turn off the engine; 16 possible causes of the accelerometer malfunction are being considered.@katlinegrey
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Yuri Borisov said, #Luna25 crash was caused by the accelerometer which didn't transmit the data necessary to turn off the engine; 16 possible causes of the accelerometer malfunction are being considered.@katlinegrey
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Hackaday Links: September 10, 2023 - Most of us probably have a vision of how “The Robots” will eventually rise up and ... - https://hackaday.com/2023/09/10/hackaday-links-september-10-2023/ #hackadaycolumns #hackadaylinks #chandrayaan-3 #surveillance #underwear #mushroom #auction #chatbot #chatgpt #reserve #windows #slider #helium #iphone #luna25 #sensor #skynet #fungi #pants #theft
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Hackaday Links: September 10, 2023 - Most of us probably have a vision of how “The Robots” will eventually rise up and ... - https://hackaday.com/2023/09/10/hackaday-links-september-10-2023/ #hackadaycolumns #hackadaylinks #chandrayaan-3 #surveillance #underwear #mushroom #auction #chatbot #chatgpt #reserve #windows #slider #helium #iphone #luna25 #sensor #skynet #fungi #pants #theft
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#NASA's Lunar Reconnaissance Orbiter (LRO) has located the site where Russian's spacecraft Luna 25 crashed on the #Moon on 19 August 2023.
Images 'before' and 'after' show a formation of a new #crater roughly 400 km away from Luna 25's intended landing site.
The new crater is very small, about 10m in diameter.
https://www.nasa.gov/feature/goddard/2023/lro-luna-25-impact
Image credits: NASA’s Goddard Space Flight Center/Arizona State University
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#NASA's Lunar Reconnaissance Orbiter (LRO) has located the site where Russian's spacecraft Luna 25 crashed on the #Moon on 19 August 2023.
Images 'before' and 'after' show a formation of a new #crater roughly 400 km away from Luna 25's intended landing site.
The new crater is very small, about 10m in diameter.
https://www.nasa.gov/feature/goddard/2023/lro-luna-25-impact
Image credits: NASA’s Goddard Space Flight Center/Arizona State University
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🌑 Le cratère formé par l'impact de #Luna25 a été repéré sur la #Lune par Lunar Reconnaissance Orbiter !
Détails sur le blog : https://reves-d-espace.com/impact-de-luna-25-sur-la-lune-repere-par-lro/
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🌑 Le cratère formé par l'impact de #Luna25 a été repéré sur la #Lune par Lunar Reconnaissance Orbiter !
Détails sur le blog : https://reves-d-espace.com/impact-de-luna-25-sur-la-lune-repere-par-lro/
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🇷🇺 #Russia's #Luna25 left a 10-metre wide crater 🕳️ on the #moon https://www.reuters.com/technology/space/crashed-russian-mission-left-crater-moon-nasa-images-show-2023-09-01/
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🇷🇺 #Russia's #Luna25 left a 10-metre wide crater 🕳️ on the #moon https://www.reuters.com/technology/space/crashed-russian-mission-left-crater-moon-nasa-images-show-2023-09-01/
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NASA Satellite Spots the Crash Site for Luna 25
Just a few days before India successfully landed their Chandrayaan-3 mission near the Moon's south pole, Russia attempted the same feat with its Luna 25 lander. Unfortunately, the mission failed, and the spacecraft crashed into the lunar surface on August 19th. New images from NASA's Lunar Reconnaissance Orbiter have revealed the crash site. Before and after images show the brand new 10-meter crater, surrounded by fresh ejecta.
https://www.nasa.gov/feature/goddard/2023/lro-luna-25-impact
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NASA Satellite Spots the Crash Site for Luna 25
Just a few days before India successfully landed their Chandrayaan-3 mission near the Moon's south pole, Russia attempted the same feat with its Luna 25 lander. Unfortunately, the mission failed, and the spacecraft crashed into the lunar surface on August 19th. New images from NASA's Lunar Reconnaissance Orbiter have revealed the crash site. Before and after images show the brand new 10-meter crater, surrounded by fresh ejecta.
https://www.nasa.gov/feature/goddard/2023/lro-luna-25-impact
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Failed #Luna25 Russian probe likely made a new crater on the Moon: it was spotted by #NASA's #lro
https://www.cbsnews.com/news/russia-luna-25-space-crash-crater-moon-nasa-images/
#space -
Failed #Luna25 Russian probe likely made a new crater on the Moon: it was spotted by #NASA's #lro
https://www.cbsnews.com/news/russia-luna-25-space-crash-crater-moon-nasa-images/
#space -
Absturzstelle von Luna-25 gefunden. Frischer Einschlagskrater markiert wahrscheinlichen Absturzort der russischen Mondsonde. #Luna25 #Mond #Mondsonde #Absturz #Raumfahrt #LRO
https://www.scinexx.de/news/kosmos/absturzstelle-von-luna-25-gefunden/ -
Russland war vor Kurzem mit seiner Mond-Mission #Luna25 gescheitert und auf der Oberfläche unseres Trabanten aufgeschlagen. Jetzt hat die #NASA offenbar die Absturzstelle der Sonde entdeckt: https://winfuture.de/news,138240.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia
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Russland war vor Kurzem mit seiner Mond-Mission #Luna25 gescheitert und auf der Oberfläche unseres Trabanten aufgeschlagen. Jetzt hat die #NASA offenbar die Absturzstelle der Sonde entdeckt: https://winfuture.de/news,138240.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia
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C'è un nuovo cratere sulla Luna. Lo ha creato la missione robotica russa #Luna25 schiantandosi sulla superficie. La sonda Lunar Reconnaissance Orbiter della NASA probabilmente lo ha trovato. Eccolo
https://www.nasa.gov/feature/goddard/2023/lro-luna-25-impact -
C'è un nuovo cratere sulla Luna. Lo ha creato la missione robotica russa #Luna25 schiantandosi sulla superficie. La sonda Lunar Reconnaissance Orbiter della NASA probabilmente lo ha trovato. Eccolo
https://www.nasa.gov/feature/goddard/2023/lro-luna-25-impact -
Gizmodo: NASA Probe Spots Crashed Russian Moon Lander https://gizmodo.com/nasa-probe-spots-crashed-russian-moon-lander-1850793784?utm_source=regular #lunarreconnaissanceorbiter #lasercommunicationinspace #explorationofthemoon #chandrayaanprogramme #lunarsouthpole #moonlanding #lunarlander #lander #luna25 #moon #luna
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NASA’s LRO – the Lunar Reconnaissance Orbiter – spacecraft imaged a new crater on the Moon’s surface that is likely the impact site of Russia’s #Luna25 mission: https://www.nasa.gov/feature/goddard/2023/lro-luna-25-impact (there was nothing in this place when it was last imaged in 2022).
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The Luna-25 probe, Russia's first moon mission in almost 50 years, has crashed on the moon after an incident during pre-landing maneuvers. https://www.japantimes.co.jp/news/2023/08/20/world/science-health/russia-moon-probe-crash/?utm_content=buffer0a216&utm_medium=social&utm_source=mastodon&utm_campaign=bffmstdn #worldnews #sciencehealth #luna25 #russia #moon #space
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The @daily_hopper unlocks the big difference between #Luna25🇷🇺💥 and #Chandrayaan3🇮🇳🌛. #Moon #astronomy #oops
