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Perseverance - 2/18/2021 3:50:59 PM   
Lobster


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2:55pm U.S. Central Time today, Thursday 18 February. https://mars.nasa.gov/mars2020/

Fingers crossed.

< Message edited by Lobster -- 2/18/2021 3:53:36 PM >


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RE: Perseverance - 2/18/2021 4:21:25 PM   
Grognerd_INC


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Yep, can't take this one for granted. One heck of a ride to ground.

< Message edited by Grognerd_INC -- 2/18/2021 7:20:14 PM >


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RE: Perseverance - 2/18/2021 6:33:27 PM   
Lobster


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And SpaceX is going to blow up another Starship. Maybe as soon as tomorrow.

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RE: Perseverance - 2/18/2021 6:42:20 PM   
Grognerd_INC


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How much more fun can we have!!!

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RE: Perseverance - 2/18/2021 7:09:26 PM   
OldSarge


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quote:

ORIGINAL: Lobster

And SpaceX is going to blow up another Starship. Maybe as soon as tomorrow.


"Failure is an option here. If things are not failing, you are not innovating enough" -- Elon Musk.
"You want to be extra rigorous about making the best possible thing you can. Find everything that's wrong with it and fix it" -- Elon Musk

Hopefully they've had a chance to find the things going wrong and will have a successful test this time around.

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RE: Perseverance - 2/18/2021 7:33:42 PM   
Lobster


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NASA uses the same old tin can design and sticks a fancy name on it. SpaceX makes spaceships.

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RE: Perseverance - 2/18/2021 7:57:51 PM   
Grognerd_INC


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Looks like they stuck the landing - congrats to them!!!!!

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RE: Perseverance - 2/18/2021 8:04:31 PM   
OldSarge


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I was holding my breathe at the last few minutes as it was locating and flying itself to a safe landing zone. Congrats to the team!

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RE: Perseverance - 2/18/2021 8:10:44 PM   
Grognerd_INC


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I'm looking for my old D drive in the closet. I have a lot of photos of my launch days at SLC-6 & SLC-4. I'll find them or rescan them and post some of the good ones. (at some point)

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RE: Perseverance - 2/18/2021 8:10:49 PM   
Lobster


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Yeah it slowed down fast.

They get enough of them they can run a Mars Grand Prix.

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RE: Perseverance - 2/18/2021 8:21:32 PM   
Grognerd_INC


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Yeah, I noticed that too! Ha!

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RE: Perseverance - 2/18/2021 8:43:11 PM   
RFalvo69


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quote:

ORIGINAL: OldSarge

I was holding my breathe at the last few minutes as it was locating and flying itself to a safe landing zone. Congrats to the team!

Years of preparations, six month to reach Mars... all tied to the last seven minutes. They must have some good cardiologists at NASA

Edit: Which was that mission that failed because they used feet instead of meters or vice-versa? Sounded incredible at the time

< Message edited by RFalvo69 -- 2/18/2021 8:44:19 PM >


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RE: Perseverance - 2/18/2021 8:49:10 PM   
Grognerd_INC


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quote:

ORIGINAL: RFalvo69

quote:

ORIGINAL: OldSarge

I was holding my breathe at the last few minutes as it was locating and flying itself to a safe landing zone. Congrats to the team!

Years of preparations, six month to reach Mars... all tied to the last seven minutes. They must have some good cardiologists at NASA

Edit: Which was that mission that failed because they used feet instead of meters or vice-versa? Sounded incredible at the time

Mars Climate Orbiter - I think the company I worked for made it - Martin Marietta / Lockheed Martin. Oops...

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RE: Perseverance - 2/18/2021 8:58:33 PM   
RangerJoe


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One group used the English measurement system while the other group used the Metric system. Failure to communicate . . .

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RE: Perseverance - 2/18/2021 9:01:29 PM   
Grognerd_INC


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Oh yeah, we heard about it for a long time.
Part of the yearly 40 hour error prevention program.
Sure were some monumental mess ups over the years. Industry wide mind you but we had our fair share.

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RE: Perseverance - 2/18/2021 9:20:56 PM   
RangerJoe


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Not just industry either. One of my stepbrothers and his first wife both spent the same money in their checking account . . .

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RE: Perseverance - 2/18/2021 9:47:11 PM   
Lobster


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quote:

ORIGINAL: Grognerd_INC


quote:

ORIGINAL: RFalvo69

quote:

ORIGINAL: OldSarge

I was holding my breathe at the last few minutes as it was locating and flying itself to a safe landing zone. Congrats to the team!

Years of preparations, six month to reach Mars... all tied to the last seven minutes. They must have some good cardiologists at NASA

Edit: Which was that mission that failed because they used feet instead of meters or vice-versa? Sounded incredible at the time

Mars Climate Orbiter - I think the company I worked for made it - Martin Marietta / Lockheed Martin. Oops...


I was thinking about that one when it was still going supersonic at a few kilometers above the surface.

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Post #: 17
RE: Perseverance - 2/18/2021 10:17:24 PM   
Grognerd_INC


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The first one we learned about started the "Lockout/Tagout" programs industry wide.

On a North Sea oil rig a maintenance crew took out a 3 foot wide relief valve and installed a blind flange on the piping. Did not report what they were doing to the control folks in the control center. So of course the drilling hit some major pockets of gas and the control chief rerouted the extra pressure down to the relief valve (That was removed). The pressure did not reduce and an explosion occurred. The Oil rig eventually sank and killed a number of crew members.

The next one happened to us at the Lockheed Martin satellite manufacturing facility in San Jose area. A NASA satellite was in the clean room in test. They sit on a huge stand bolted down that is on a giant air bed (Like air hockey) so it is pretty easy to move around. This is also a class 100,000 clean room. So the second shift crew needed to "borrow" the bolts to bolt down their satellite and proceeded to remove the bolts off the NASA satellite. So first shift comes in and start working on the NASA unit. These stands can rotate the satellite in a lot of various ways. The inspector decides to "buy off" the bolts installed step in the procedure because he bought it off yesterday and no one works on the satellite but first shift. So they go to rotate the satellite to 90 degrees and it slides off the stand and crashes to the floor! Fired quite a few folks over this - ended up scrapping the 200 to 400 million dollar satellite too.



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RE: Perseverance - 2/18/2021 10:30:15 PM   
Lobster


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Uhm...





Attachment (1)

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RE: Perseverance - 2/19/2021 2:46:53 AM   
DeepBlack


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I really love these robotic spacecraft. I feel
they are much more cost effective than manned spaceflight.
Manned spaceflight is so expensive and if someone dies
then there is an abrupt halt that creates long lasting turmoil.

Does anyone else feel the same? That there is little
justification for humans in space other than the
chest thumping, ta-ra-ra-boom-de-ay display?

How many can recall the second person
to conquer Mt. Everest?


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RE: Perseverance - 2/19/2021 3:02:29 AM   
RangerJoe


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Well, document, document, document . . .

Unmanned space flight is cheaper, safer but if something unexpected happens a human hand may be needed. But it also depends upon where the mission is, if it is in orbit around the Earth, manned may be better. But eventually, the chest thumping stuff may need to be done. The best way to get to Mars for a manned mission might be using a Lunar base to build the spacecraft and/or supply it.

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RE: Perseverance - 2/19/2021 3:37:45 AM   
Lobster


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Of course people have to go. No one needs to climb any mountain. It's pointless. But humans have a need to go. It's in the DNA. Not everyone's but enough that it gets done. 'Adventure is out there'. That's why they do it.

I would love to go to Mars. It would probably kill me but what the heck, I've been hanging around long enough anyway.

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RE: Perseverance - 2/20/2021 12:56:13 AM   
Platoonist


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I do love this jaw-dropping view of the rover dangling from cables and an umbilical cord, two meters above the Martian surface with dust being kicked up by the sky-crane's jets. One giant leap for robot-kind.



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RE: Perseverance - 2/20/2021 11:57:06 AM   
RFalvo69


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quote:

ORIGINAL: Platoonist

I do love this jaw-dropping view of the rover dangling from cables and an umbilical cord, two meters above the Martian surface with dust being kicked up by the sky-crane's jets. One giant leap for robot-kind.





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RE: Perseverance - 2/20/2021 2:37:46 PM   
Bo Rearguard


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In another photographic feat, the orbiter managed to snap a pic of the descent module and parachute from 300 miles away.



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RE: Perseverance - 2/20/2021 5:41:43 PM   
RangerJoe


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I wonder if they tested that camera over certain beaches on Earth . . .

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RE: Perseverance - 2/20/2021 10:20:41 PM   
Pvt_Grunt

 

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quote:

ORIGINAL: Grognerd_INC

On a North Sea oil rig a maintenance crew took out a 3 foot wide relief valve and installed a blind flange on the piping. Did not report what they were doing to the control folks in the control center. So of course the drilling hit some major pockets of gas and the control chief rerouted the extra pressure down to the relief valve (That was removed). The pressure did not reduce and an explosion occurred. The Oil rig eventually sank and killed a number of crew members.


Piper Alpha disaster 167 deaths. It is still used in oil industry safety videos.


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RE: Perseverance - 2/20/2021 10:32:13 PM   
Grognerd_INC


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quote:

ORIGINAL: Pvt_Grunt


quote:

ORIGINAL: Grognerd_INC

On a North Sea oil rig a maintenance crew took out a 3 foot wide relief valve and installed a blind flange on the piping. Did not report what they were doing to the control folks in the control center. So of course the drilling hit some major pockets of gas and the control chief rerouted the extra pressure down to the relief valve (That was removed). The pressure did not reduce and an explosion occurred. The Oil rig eventually sank and killed a number of crew members.


Piper Alpha disaster 167 deaths. It is still used in oil industry safety videos.


Thanks, I recounted it from memory.

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