Author Topic: LIVE: MSL Curiosity Rover ENTRY, DESCENT, LANDING - Aug 5-6, 2012  (Read 275420 times)

Offline Artyom.

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Offline Lee Jay

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Does anyone have the miss distance that PAO stepped on?

Offline jcm

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1014:39 PDT is 0514:39 UTC - that must be SCET not ERT, but is about 3 min earlier
than per the previously expected timeline. Did anyone get an accurate time for entry
interface when it happened?
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline Fred

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Engage 3D glasses!

Offline simonbp

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~2.5 km

Offline Kaputnik

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1.4 kg of fuel left onboard


I heard it as 140.6 kg

It was 1.4Kg, can't be 140Kg- too much.

Jim

Yeah, I figured that number was too high. They must have mis-reported it.



I'm sure I heard 140.6kg. Remember the descent stage started out with 390kg propellant aboard so seems a good number to me, given a smooth descent without complications.
"I don't care what anything was DESIGNED to do, I care about what it CAN do"- Gene Kranz

Offline Chris Bergin

I need to get a couple of hours shuteye in before the day job, so feel free to keep this ticking over as we'll use this thread for another day and then go into a surface update thread.

Great work everyone!

(Intense, Surreal, Victory!)
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Offline Patchouli

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I watched the whole thing on NASA TV.
« Last Edit: 08/06/2012 06:06 am by Patchouli »

Offline Eric Hedman

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I need to get a couple of hours shuteye in before the day job, so feel free to keep this ticking over as we'll use this thread for another day and then go into a surface update thread.

Great work everyone!

(Intense, Surreal, Victory!)
Good night Chris.

Offline Silmfeanor

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This event was better than  any cargo spacecraft visiting a LEO space station.  ;-)

It was awesome  ;D
Can't wait for more in the coming days

Offline JimO

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That number was prior to flyaway, so remaining fuel had to be used for that function. 

I'm looking forward to the computed distance from 'Curiosity' that the stage would have landed, now given the burn time. Ditto range to heat shield and parachute, The hunt for orbital images of all these objects now begins. Depending on terrain, one or more may leave indications visible from the rover, or be targets for early translation over to, to examine fresh-dug dirt,

Offline iamlucky13

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Does anyone have the miss distance that PAO stepped on?

Assuming that's what they were talking about, initial calculation was 2.27 km.

Target ellipse is 20km long. I don't know how wide.

Offline Wyvern

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Congratulations to NASA for landing Curiosity now let's see what this puppy can do!
Darn it where is my Moon base!

Offline Lee Jay

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Does anyone have the miss distance that PAO stepped on?

Assuming that's what they were talking about, initial calculation was 2.27 km.

Target ellipse is 20km long. I don't know how wide.

I think it was like 20kmx6.5km.  Sounds like they may have nailed 1 sigma.

Offline Kaputnik

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Does anyone have the miss distance that PAO stepped on?

Assuming that's what they were talking about, initial calculation was 2.27 km.

Target ellipse is 20km long. I don't know how wide.

7km wide
"I don't care what anything was DESIGNED to do, I care about what it CAN do"- Gene Kranz

Offline Space Pete

This event was better than  any cargo spacecraft visiting a LEO space station.  ;-)
who would disagree?

Umm, me, for one. ;)

Speaking purely personally, I was at about the same level of excitement for the SpaceX flight as I was for the MSL EDL. But I agree that significance wise, MSL wins hands down.

Way to go JPL. I still can't believe it actually worked! What a great day it is. :)
NASASpaceflight ISS Editor

Offline marshallsplace

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Just wanting to add my congratulations to the Nasa and JPL teams and eveyone here for the great reporting.  This is an amazing achievement. Go Curiosity Go!
« Last Edit: 08/06/2012 06:19 am by marshallsplace »

Offline simonbp

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Does anyone have the miss distance that PAO stepped on?

Assuming that's what they were talking about, initial calculation was 2.27 km.

Target ellipse is 20km long. I don't know how wide.

Roughly 2 km. And the ellipse was almost due east-west, so they are either 2 km west or east of the target point. Either way, MSL is right in between the walls and central peak of Gale Crater.

Offline Stardust9906

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News briefing up next.
« Last Edit: 08/06/2012 06:11 am by Stardust9906 »

Offline iamlucky13

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That number was prior to flyaway, so remaining fuel had to be used for that function. 

I'm looking forward to the computed distance from 'Curiosity' that the stage would have landed, now given the burn time. Ditto range to heat shield and parachute, The hunt for orbital images of all these objects now begins. Depending on terrain, one or more may leave indications visible from the rover, or be targets for early translation over to, to examine fresh-dug dirt,

No word on that yet, and I might have heard it wrong, but I think there was a call out shortly before backshell separation estimating the cruise balance weights would hit 1.5 km or so downrange from the rover. I think that means about 90 degrees off from the planned direction of travel, but I'm half guessing there.

It's been reported previously that they will not examine the descent stage up close due to risk of contaminating SAM with hydrazine vapors.

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