Unmanned Lunar Missions

Sandhi Yudha

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Luna 25 had been scheduled to lift off in September this year, but once again the launch date is moved backwards.

Reportedly, a speed and distance sensor that will help the lander make a safe and soft landing on the moon underperformed during testing, leading to the delay from last month into 2023.

Luna 25 will be the first mission in modern Russian history to head for the moon, but the program is delayed for countless times, maybe even more than ten times. The Luna-Glob program is based on plans dating back to 1997. Due to the 1998 Russian financial crisis however, the programme's first mission, the Luna 25 lander, was put on hold, only to be revived a few years later. Initially scheduled for launch in 2012, then rescheduled to 2014, then to 2015, to 2016, 2018 and 2019.

The last reschedules are from last year to May to August and then September 2022 — and now July 2023. So this is a never ending story of delays and setbacks for this cursed program.


 
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Sandhi Yudha

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After a nearly two-week delay, SpaceX’s Falcon 9 launched ispace’s small Hakuto-R M1 lunar lander toward the Moon.

Liftoff took place on 2022-12-11 7:38 UTC from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.

This Hakuto-R mission one aims to lay the groundwork for future transportation. A second mission, is planned for 2024.



On board is the United Arab Emirates’ Rashid Moon Rover. The Rashid rover - built by Emirati engineers from the UAE’s Mohammed bin Rashid Space Center (MBRSC) - is to be sent to regions of the Moon unexplored by humans.

It marks the UAE’s first Moon mission, with more rovers to be developed in the future.
 
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ngatimozart

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After a nearly two-week delay, SpaceX’s Falcon 9 launched ispace’s small Hakuto-R M1 lunar lander toward the Moon.

Liftoff took place on 2022-12-11 7:38 UTC from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.

This Hakuto-R mission one aims to lay the groundwork for future transportation. A second mission, is planned for 2024.



On board is the United Arab Emirates’ Rashid Moon Rover. The Rashid rover - built by Emirati engineers from the UAE’s Mohammed bin Rashid Space Center (MBRSC) - is to be sent to regions of the Moon unexplored by humans.

It marks the UAE’s first Moon mission, with more rovers to be developed in the future.
It'll soon be getting crowed on the moon. We might have to send parking wardens up there :D
 

Sandhi Yudha

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Chandrayaan-3, India's latest Moon mission (consisting of an orbiter, lander and a rover), has entered the lunar orbit.
The spacecraft lifted off on 14 July, and it is planned to set the lander and rover on the lunar surface on 23 or 24 August.

If successful, India will be the first country to land near the Moon's little-explored south pole.



And Russia has once again postponed the launch of the robotic Luna 25 lander from 13 July, and will now lift off no earlier than August.

Well, we will see if this month the launch will be moved backwards again.
 
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Sandhi Yudha

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At last...after 47 years waiting, Roskosmos has successfully launched a spacecraft to the Moon.

Luna 25 (Luna-Glob) was yesterday (UTC-time) launched with a Soyuz-2-1b/Fregat rocket and it Russia’s first mission to the Moon since the Soviet Luna 24 mission which was launched on 9 August 1976. The robotic lander is scheduled for touchdown north of Boguslawsky crater near the south pole of the Moon on 23 August.
Luna-25 has eight scientific instruments on board including a mechanical arm and bucket that can scoop up lunar regolith.

It is to be expected that Luna 25 will land on the Moon on the same day as the Indian Chandrayaan-3. Chandrayaan-3 already sent the first images of the Moon four days ago.



 
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Sandhi Yudha

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Russia’s Luna-25 automatic lunar station (spacecraft/spaceprobe) has entered the orbit of the Moon. The lunar lander is set to enter lunar orbit on August 16 and softly touch down on the Moon’s surface on August 21.

So we will see if the Russians can land the Lunar 25 earlier than the Indian Chandrayaan-3, which is planned to land on the southpole of the Moon on 23 August.
 
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Feanor

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Russia’s Luna-25 automatic lunar station (spacecraft/spaceprobe) has entered the orbit of the Moon. The lunar lander is set to enter lunar orbit on August 16 and softly touch down on the Moon’s surface on August 21.

So we will see if the Russians can land the Lunar 25 earlier than the Indian Chandrayaan-3, which is planned to land on the southpole of the Moon on 23 August.
I don't think there is any intent to land it early. I think if Russia does this successfully at all it will already be quite the accomplishment.
 

Sandhi Yudha

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Text editing in progress.


Updates of Chandrayaan-3 and Luna-Glob/Luna 25.


Chandrayaan-3

Launched on 14 July 2023, Orbit insertion on 5 August 2023, Lander separated from relay satellite on 17 August 2023, first deboosting burn of the lander on 18 August was successful, scheduled to land on 23 August 2023.


Luna 25
Launched on 10 August 2023, Orbital insertion on 16 August 2023, orbit correction maneuver performed on 18 August with the Lander planned for landing on 21 August 2023.
 
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Sandhi Yudha

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Updates of Chandrayaan-3 and Luna 25.

Chandrayaan-3 has sent black-and-white images showing close-ups of rocks and craters on the Moon's surface. One of the photographs shows the propulsion module too.



Also the Luna 25 has sent some interesting photos of the surface of the Moon.

But here it comes.... the pessimistic predictions of Feanor seems to becoming reality...

|"On 19 August, Roskosmos reported that another orbital maneuver had started at 14:10 Moscow Time (7:10 a.m. EDT) to transfer the spacecraft to a "pre-landing orbit", but "during the operation, an emergency situation occurred on board... which did not allow the maneuver to be performed with the specified parameters." According to Roskosmos, the management team was analyzing the situation.

A few hours after the first official announcement about a problem aboard Luna-Glob, an unofficial Telegram channel, Zakryty Kosmos, reported that the spacecraft had broken communications with ground control during the orbit correction but Roskosmos continues its attempts to contact the spacecraft.

Around the same time, another Telegram channel Yura Prosti claimed that a computational error led to the final engine firing to be 1,5 times longer than required and thus resulting in deorbiting and crash of the spacecraft on the Moon."|

We just have to wait for the official announcement that the Luna-Glob spaceprobe could be saved at the last moment or has become a complete failure.
 
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Sandhi Yudha

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New update about the Luna 25, and probably the last...
After an almost continues chain of (partly) failures in the last decades, like Phobos 1, Phobos 2, Mars 96 and Fobos-Grunt, Roskosmos can add another one to this embarrassing list .
Luna 25 is crashed on the Moon, and with this the Luna 25 program, Russia's first mission to the Moon after the Soviet Luna 24 from 47 years ago, has ended in a complete failure.

Once the number 1 pioneer of space exploration, can Roskosmos do anything else than mess it up every time? The only exception was Exomars 2016. Luna 26 and 27 will undoubtedly be delayed with at least 5 years, and after two decades of delays, Venera-D will perhaps land on Venus around 2050.

 

Sandhi Yudha

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Its now official.
Yesterday on 21 August , Yuri Borisov, Director General at Roskosmos blamed an engine failure for the Luna-Glob crash. According to Borisov, the engine fired for 127 seconds instead of planned 84 seconds.

So now some updates about Chandrayaan-3.

Chandrayaan-3 is now looking for a spot on the southpole of the Moon for a safe landing.
 

AndyinOz

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It seems from the coverage online that ISRO had a successful landing of the Chandrayaan-3 spacecraft on the lunar surface towards the southern pole. No RUD reported this time unlike the Luna 25 from Roscosmos. Definitely a more gentle touchdown than Luna 25 or even Chandrayaan-2 from a few years ago. Quite an achievement for ISRO and all those involved.
 

Sandhi Yudha

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It seems from the coverage online that ISRO had a successful landing of the Chandrayaan-3 spacecraft on the lunar surface towards the southern pole. No RUD reported this time unlike the Luna 25 from Roscosmos. Definitely a more gentle touchdown than Luna 25 or even Chandrayaan-2 from a few years ago. Quite an achievement for ISRO and all those involved.
Yes you are right, where Luna 25 failed, Chandrayaan-3 succeeded.
 
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John Fedup

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Yes you are right, where Luna 25 failed, Chandrayaan-3 succeeded.
I guess we will to wait for the "show me the water" moment. ;)
 

Ananda

The Bunker Group

What India done not only shown they can do something that even Russian fail to do, but do it with the budget fraction from everyone else done (especially compare to NASA ones), on the similar endeavor.

The last one is for me personally is the big thing. India can goes to the market and saying to anyone that want to explore space, 'work with us'. We can give you space in fraction costs from anyone else in the market. Well certainly it is one of the reasons why their satellite delivery services begin to increase in business.
 

Sandhi Yudha

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This H-2A rocket is fully-loaded for launch at the Tanegashima Space Center in Japan. It will liftoff at 9:26 in the morning local time (00:26 UTC) carrying a next-generation X-ray space telescope and an experimental lunar lander.

The SLIM, short for Smart Lander for Investigating Moon, is a lightweight 700kg spacecraft designed to demonstrate navigation systems for pinpoint lunar landings in rugged lunar terrain. The craft will use a fuel-saving trajectory that takes about four months to reach the Moon.


Here some more information.


Edit: planned launch was pushed back/delayed. See post #21 for the actual launch on 7 September.
 
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Sandhi Yudha

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After around 2 weeks, the Indian moonrover is now parked in standby-mode at the southpole of the Moon. The scientist/engineers of ISRO are now processing the sent data.


And yesterday India has launched its first observation mission to the Sun, just days after the country made history by becoming the first to land near the Moon's south pole.
 
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