Author Topic: IM-1 Odysseus lunar lander  (Read 400790 times)

Offline nzguy

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Re: IM-1 Odysseus lunar lander
« Reply #920 on: 02/29/2024 12:20 am »
Lots of great info, so basically the initial failed laser range finders, and then the valid flag bug in the rushed patch to use the NASA sensor is the main cause for the tipped over langing.

Looks like they got a lot of learnings to process and likely a number of changes needed in IM-2 such as a way to verify the laser safety pin is in place before launch. Maybe instead of pin they should have a switch with a lockout? Sounds like this was a bit of a last minute jerry-rig to meet a range safety requirement.

The issues with the engine cooling and control I think is somewhat expected first time you send a new design into space without a "test" mission, or spending lots of resources on perfect simulations.

Also they need to think about how to improve the radio/antenna systems to better handle off-nominal landings. The satellite launched with IM-2 will solve some of that, particularly with these pole locations. They also need to look at improvements on the ground side with the dishes they have picked and whether they need upgrades to improve capabilities - e.g. being able to transmit from Parkes, higher power transmitters, etc

Offline Jim

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Re: IM-1 Odysseus lunar lander
« Reply #921 on: 02/29/2024 12:36 am »

Looks like they got a lot of learnings to process and likely a number of changes needed in IM-2 such as a way to verify the laser safety pin is in place before launch. Maybe instead of pin they should have a switch with a lockout? Sounds like this was a bit of a last minute jerry-rig to meet a range safety requirement.


Green tag is for items that need to installed before flight.  Standard practice is an enable plug vs a wire pin.  The issue is their implementation.  Items like this would be known years before flying as part of safety review process.  NASA usually hand holds payloads through this process and most of the payloads know to do things like this.  My take on this is a new company going through the process and SpaceX doing the minimum to host/facilitate (their facility, their rocket) the process and they don't know what is flying next month much less next year so their review process is just in time.  Things are done much later in the mission cycle and certainly much later in the design and development process (spacecraft in manufacture vs in design reviews).

Offline theinternetftw

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Re: IM-1 Odysseus lunar lander
« Reply #922 on: 02/29/2024 02:30 am »
Quick note that in my notes above I had that the NASA payloads had sent back "over 15 MB" of data.

I misheard.  The correct quote is a much more sensible "over 50 MB."
« Last Edit: 02/29/2024 02:36 am by theinternetftw »

Offline nzguy

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Re: IM-1 Odysseus lunar lander
« Reply #923 on: 02/29/2024 03:07 am »
Green tag is for items that need to installed before flight.  Standard practice is an enable plug vs a wire pin.  The issue is their implementation.  Items like this would be known years before flying as part of safety review process.  NASA usually hand holds payloads through this process and most of the payloads know to do things like this.  My take on this is a new company going through the process and SpaceX doing the minimum to host/facilitate (their facility, their rocket) the process and they don't know what is flying next month much less next year so their review process is just in time.  Things are done much later in the mission cycle and certainly much later in the design and development process (spacecraft in manufacture vs in design reviews).

Thanks for your insight! An enable plug sounds like a good idea as its easy to verify during inspections.

Online catdlr

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Re: IM-1 Odysseus lunar lander
« Reply #924 on: 02/29/2024 03:25 am »
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Re: IM-1 Odysseus lunar lander
« Reply #925 on: 02/29/2024 03:26 am »
https://twitter.com/InfographicTony/status/1763049654642745399

Quote
UPDATE 2.0 (unofficial): This is how I have interpreted the landing based on recent photos. Note the rock placements are artistic license and it reads right to left because it's going to be inserted into the main infographic I am updating.
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Offline nzguy

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Re: IM-1 Odysseus lunar lander
« Reply #926 on: 02/29/2024 03:41 am »
Quote
UPDATE 2.0 (unofficial): This is how I have interpreted the landing based on recent photos. Note the rock placements are artistic license and it reads right to left because it's going to be inserted into the main infographic I am updating.

Still needs work to match the press conference, the ground has some slope and the lander is leaning on one of the side tanks...

Offline Comga

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Re: IM-1 Odysseus lunar lander
« Reply #927 on: 02/29/2024 04:24 am »
Quote
UPDATE 2.0 (unofficial): This is how I have interpreted the landing based on recent photos. Note the rock placements are artistic license and it reads right to left because it's going to be inserted into the main infographic I am updating.

Still needs work to match the press conference, the ground has some slope and the lander is leaning on one of the side tanks...

… and the solar panel “on top” is facing away from the Sun.

Did Odysseus travel into the slope going up or along it going down?

However, this is a great start.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

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Re: IM-1 Odysseus lunar lander
« Reply #928 on: 02/29/2024 05:07 am »
https://twitter.com/DrPhiltill/status/1762897857311371626

Quote
After reading this I will always envision a lander whose vision was blinded but it flies heroically toward the surface, guessing how far to go, impacting too hard and sliding across the ground, flinging rocks and dust while the engine still spews flame, metal bending and a leg snapping free before it skids to a stop, teetering, bruised and covered with dust, but proudly upright on the freaking Moon for a brief moment, and it says, “Hey bruh. I did it.”🔥

Article:  https://arstechnica.com/space/2024/02/it-turns-out-that-odysseus-landed-on-the-moon-without-any-altimetry-data/

Quote
I visited Intuitive Machines on Tuesday wondering whether the Odysseus mission was a success or a failure. I left without any doubts.
« Last Edit: 02/29/2024 05:09 am by catdlr »
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Offline spacexplorer

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Re: IM-1 Odysseus lunar lander
« Reply #929 on: 02/29/2024 05:42 am »
I notice some lack of perspective in this thread. This landing was a WILD SUCCESS! Yes, it was a "soft" landing. Not "soft" would have been a smoking crater on the ground with immediate and terminal end-of-signal. Do you know how hard this is to do? How easy to screw up a little thing and fail completely, like so many other landers or spacecraft have done, with much larger budgets? Some people here are nuts.

I'll be the first to make fun of their hyperbole vs. screw ups, but it was a success. And now they'll fix their problems and will keep putting landers on the moon.
Next time you'll get a plane you will understand why this landing was a failure. Anyway, we have a failed landing followed by a successful mission. It was by luck, or by chance, or by God wish, anyway the lander survived to a catastrophic slow-motion landing (only low gravity prevented lander from being destroyed on impact: it took 2 seconds for it to tip over) .

Now, the root cause of the bad landing: no space flight know-how.
Now they know they need quality procedures and pre-launch checklists, they can't do everything by heart and hope everything goes well: you mis-design a pin (hiding it to view), you forgot to check if a fundamental payload is ready for launch, and you burn 200 milion dollars in a second.

Apart from this:

I wonder how they fixed an "hardware problem in SCALPSS serial port" without going up there with a screwdriver: these guys appear really confused about terminology: hardware, software, success, failure,... everything is a mess.

About confusion: they look really confused also about how to read telemetries: is it that complex to read onboard accelerometers and figure out final resting attitude? 0 degrees, no, 90 degrees, no maybe 30 degrees...
Very embarassing engineering, here.

And finally: congratulations to the developer of the algorithm for visual navigation, it saved the mission. Now we know that laser finder are maybe not needed at all, as long there is enough  time to process images onboard to also determine altitude, not just speed: my 200$ smartphone can determine object dimensions with cm precision using just one camera, the accelerometer and the gyroscope, just by SW processing   (look for "AR measure" on playstore) , and thanks to ARcore library it can build a 3d model of my room in realtime while I move it around.

Offline Phil Stooke

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Re: IM-1 Odysseus lunar lander
« Reply #930 on: 02/29/2024 07:06 am »
The ILOA image from the surface has a surprise hiding in the glare:

Professor Emeritus, University of Western Ontario. Space exploration and planetary cartography, historical and present. A longtime poster on
unmannedspaceflight.com (RIP - now archived at https://umsfarchive.com/index.php/), now posting content on https://mastodon.social/@PhilStooke and https://discord.com/channels/1290524907624464394 as well as here. The Moon Chronicle, a new history of lunar exploration (free download): https://publish.uwo.ca/~pjstooke/moon-chronicle.htm  The Solar System ain't gonna map itself.

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Re: IM-1 Odysseus lunar lander
« Reply #931 on: 02/29/2024 07:12 am »
https://twitter.com/InfographicTony/status/1763101422764319130

Quote
UPDATE 3.0: Function over aesthetics, in this case, everything was working against me in creating an infographic that reads right to left, I did have an end goal in mind (more for visually appealing reasons), but once admitting defeat, the realization was clear I was trying to reinvent the wheel. Now that I am reworking this left to right, the tangled mess in my brain now sees clarity. Now I just have to work out the other steps that lead to Odysseus’ final resting place.
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Offline nzguy

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Re: IM-1 Odysseus lunar lander
« Reply #932 on: 02/29/2024 07:17 am »
The ILOA image from the surface has a surprise hiding in the glare:

Wow I didn't even notice that in the original...

It will be an interesting spot to visit in the future with a rover or moon buggy.

Offline nzguy

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Re: IM-1 Odysseus lunar lander
« Reply #933 on: 02/29/2024 07:19 am »
Have India released any Chandrayaan-2 images of the landing site yet? I think it is supposed to have higher resolution camera then LRO.

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Re: IM-1 Odysseus lunar lander
« Reply #934 on: 02/29/2024 07:21 am »
The ILOA image from the surface has a surprise hiding in the glare:



Phill Stooke, I contacted Tony Bela to update his image based on the photo that you posted.  Good catch.
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Re: IM-1 Odysseus lunar lander
« Reply #935 on: 02/29/2024 07:25 am »
https://twitter.com/amsatdl/status/1763117774249902419

Quote
Surprisingly #IM1
@Int_Machines
 
@CrainTim kept transmitting throughout the night until  LOS this morning @SternwarteBO !!  😃The transmitter seemed to turn on every 30 minutes or so. Video is available here: https://youtube.com/watch?v=UfEe35_lv7w

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Offline Oersted

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Re: IM-1 Odysseus lunar lander
« Reply #936 on: 02/29/2024 08:15 am »
I notice some lack of perspective in this thread. This landing was a WILD SUCCESS! Yes, it was a "soft" landing. Not "soft" would have been a smoking crater on the ground with immediate and terminal end-of-signal. Do you know how hard this is to do? How easy to screw up a little thing and fail completely, like so many other landers or spacecraft have done, with much larger budgets? Some people here are nuts.

I'll be the first to make fun of their hyperbole vs. screw ups, but it was a success. And now they'll fix their problems and will keep putting landers on the moon.
Next time you'll get a plane you will understand why this landing was a failure. Anyway, we have a failed landing followed by a successful mission. It was by luck, or by chance, or by God wish, anyway the lander survived to a catastrophic slow-motion landing (only low gravity prevented lander from being destroyed on impact: it took 2 seconds for it to tip over) .

Now, the root cause of the bad landing: no space flight know-how.
Now they know they need quality procedures and pre-launch checklists, they can't do everything by heart and hope everything goes well: you mis-design a pin (hiding it to view), you forgot to check if a fundamental payload is ready for launch, and you burn 200 milion dollars in a second.

Apart from this:

I wonder how they fixed an "hardware problem in SCALPSS serial port" without going up there with a screwdriver: these guys appear really confused about terminology: hardware, software, success, failure,... everything is a mess.

About confusion: they look really confused also about how to read telemetries: is it that complex to read onboard accelerometers and figure out final resting attitude? 0 degrees, no, 90 degrees, no maybe 30 degrees...
Very embarassing engineering, here.

And finally: congratulations to the developer of the algorithm for visual navigation, it saved the mission. Now we know that laser finder are maybe not needed at all, as long there is enough  time to process images onboard to also determine altitude, not just speed: my 200$ smartphone can determine object dimensions with cm precision using just one camera, the accelerometer and the gyroscope, just by SW processing   (look for "AR measure" on playstore) , and thanks to ARcore library it can build a 3d model of my room in realtime while I move it around.


Maybe as a "spacexplorer" you could offer your services to the team? I am sure they would be very grateful for your insights and collegiality.

Offline eeergo

Re: IM-1 Odysseus lunar lander
« Reply #937 on: 02/29/2024 08:21 am »
One leg left behind, but it also looks like all of them were damaged.

https://twitter.com/DDAVISSPACEART/status/1762951458641842492
« Last Edit: 02/29/2024 08:46 am by eeergo »
-DaviD-

Online catdlr

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Re: IM-1 Odysseus lunar lander
« Reply #938 on: 02/29/2024 08:41 am »
https://twitter.com/SpacesFuture/status/1763104288015036772

Quote
Odysseus Trajectory from Schomberger to Malapert A ^

🧭 Tipping of Odyssey 🛸 On Its Back w/ One Side Solar Panel Up 🔆 Forward Solar🔆 To Schomberger, Aft Engine 🔥 & Legs 🦿 To Malapert A 6️⃣ & the Sun set 🌄⚫ ¹!?
_
¹https://twitter.com/SpacesFuture/status/1763094971077533924
^https://twitter.com/SpacesFuture/status/1760741512785350988
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Online catdlr

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Re: IM-1 Odysseus lunar lander
« Reply #939 on: 02/29/2024 08:42 am »
https://twitter.com/pascalleetweets/status/1763112516165775856

Quote
ODYSSEUS FLIES BY CRATER SCHOMBERGER K

LEFT: Landscape around @Int_Machines Odysseus on final descent from Schomberger (left) to Malapert A (right). Dashed box is area in next pic.

RIGHT: Stunning pic from Odysseus'
@ILOA_Hawaii imager w/ Schomberger K at left.

@SETIInstitute
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