[HN Gopher] Day 2 Operations with the James Webb Space Telescope...
___________________________________________________________________
Day 2 Operations with the James Webb Space Telescope is about to
begin
Author : flyingbarron
Score : 103 points
Date : 2022-07-11 13:05 UTC (9 hours ago)
(HTM) web link (flyingbarron.medium.com)
(TXT) w3m dump (flyingbarron.medium.com)
| nharada wrote:
| I have no technical insight, but I'm SO stoked to see these
| images tomorrow.
| bearjaws wrote:
| krallja wrote:
| Nixon called Neil and Buzz on the moon. Reagan sent a message
| of good wishes to STS-1 (he was recovering from an
| assassination attempt). Biden gets to present the government's
| telescope pix. It's one of the honors of being the President.
| ssnistfajen wrote:
| Carter wrote a message included in the Voyager Golden Record.
| These are formalities which I don't understand why that
| person was upset at this.
| ddalex wrote:
| Depends on what we see in the images. If we see space
| structures that are undeniable artificial, spanning tens of
| billions of light years in size, yes, that would be something
| that the president would announce.
| dotnet00 wrote:
| If the telescope saw any undeniably artificial structure
| billions of light years in size, there would be a lot more to
| worry about than who announces it. It would effectively be
| like discovering god given how absurd a size billions of
| light years is.
| geoffeg wrote:
| I'm of two minds here. I agree with you but hopefully having
| Biden involved in the briefing will draw more attention to what
| I think it one of the coolest large science and engineering
| projects in decades (just my opinion).
| flyingbarron wrote:
| I think it emphasizes the importance of the results - it's for
| everyone, not just scientific types.
|
| Back in 1964, President Lyndon Johnson "expressed interest" in
| the first close-up pictures NASA got from the Moon on Ranger 7.
| The freshly developed images were loaded onto a plane and the
| President got a private briefing with the head of NASA on the
| very same day. (sorry, I don't think I can link the picture)
| https://history.nasa.gov/SP-4210/pages/Ch_18.htm
| dylan604 wrote:
| >President got a private briefing with the head of NASA
|
| head of NASA aka the Vice President. maybe you meant the NASA
| administrator?
| onionisafruit wrote:
| I think they mean James Webb.
|
| As a side note, I thought the NASA Administrator reported
| to POTUS.
| dylan604 wrote:
| Very possibly. It's in my head that the NASA
| Administrator "reported" to VPOTUS, but that could just
| be from a bit in a movie more so than real world.
| Victerius wrote:
| A phenomenon I've noticed is that the most important person in
| an organization tends to always make the coolest announcements.
| This applies equally to the government and to corporations.
|
| Dear presidents, governors, and CEOs, please let lower level
| employees make the cool announcements.
| [deleted]
| phailhaus wrote:
| Way more people will pay attention to the President announcing
| it than "so-and-so from NASA". Though I too hope he passes it
| over to the team to explain the findings.
| [deleted]
| itslennysfault wrote:
| It's quite the opposite. It's an honor that this is big enough
| news that the president is going to be the one presenting this
| to the world.
| furyofantares wrote:
| Kinda? But honestly I bet the people who worked on it are
| excited by the prestige of having the president release them.
| It'll get way more eyeballs on the event I'm sure, and he's
| almost certainly going to praise the people who worked on it
| 1970-01-01 wrote:
| No. Biden does not take credit for the images and will present
| them as decades of international effort. The former President
| would claim he took the images all by himself.
| throwaway12245 wrote:
| Biden's probably not going to be taking credit for any images
| this week.
| prpl wrote:
| He has presided over one of those decades
| thehappypm wrote:
| If my ego were so large that I'd rather present my own work
| than let the POTUS do it for me, I'd probably be running Tesla.
| guerrilla wrote:
| rob74 wrote:
| If this "day 2" does not refer to an actual day (which does not
| have a real meaning if you're not on a planet), but to a phase,
| why do they call it "day" and not "phase"? Does "phase" have some
| kind of negative connotation, does it sound too "scientific"?
| luxuryballs wrote:
| hmm maybe day 2 is after day 1 and before day 3 but not
| necessarily adjacent, meaning a specific day kicks something
| off any number of days after a previous planned day? So over
| the course of the next month we have 3 special days that kick
| off different phases.
| zamadatix wrote:
| I think the terms day 0/1/2 have caught on because they are
| constant across projects regardless how lacking or overboard
| the phase planning was. I.e. the project may or may not have
| much more detailed actual phases and those phases may or may
| not be obvious to someone without a background in the project
| but anyone can understand where the project is at without first
| ingesting the entire project plan.
| 9dev wrote:
| Funny you would mention days being a constant for a space
| telescope on an orbit around the sun, where days definitely
| do not mean the same thing as they do on earth :)
| dredmorbius wrote:
| See for example "day 1" (Bezos / Amazon):
|
| https://www.forbes.com/sites/quora/2017/04/21/what-is-jeff-b...
|
| (Not an edorsement / fandom.)
| flyingbarron wrote:
| I honestly don't know.
|
| Just to clarify, the term "Day-2" isn't from NASA, it's a
| universal engineering term - which mostly happens on Earth ;)
|
| I'm guessing it's just a planning term - like D-Day :shrugs:
| throw0101a wrote:
| * https://dzone.com/articles/defining-day-2-operations
|
| * https://about.gitlab.com/solutions/day-2-ops/
| formerly_proven wrote:
| I'll admit I've never heard of day 0/1/2 before.
| [deleted]
| flyingbarron wrote:
| Still doesn't explain why "Day" and not "Phase" or "Stage"
| or "Level" or "Period"
|
| I think I covered the basic explanation in my article as
| well as dzone and gitlab did in theirs.
|
| :D
| zardo wrote:
| I think "day one" was an existing phrase that was
| confusingly extended to cover other "start of phase"
| concepts.
|
| Sounds like a nice way to trick your management though,
| "Uh no, it won't have feature X on day one, but that will
| be working by Day-2."
| JacobThreeThree wrote:
| I see Day-0, Day-1, Day-2 etc. used in the context of
| business planning quite frequently.
| GrumpyNl wrote:
| So its in 3 days?
| outworlder wrote:
| No.
|
| Day zero is usually prep work. Etc.
|
| "Day 2" could be a decade or for as long as the system is
| maintained.
| interestica wrote:
| Okay, anyone think it's strange that they pushed back the release
| at the last minute (to 1730EDT) -- and they have done a pretty
| poor job of making that obvious on their channels (eg twitter or
| live NASAtv feed). Strange strange.
| tigershark wrote:
| 45 minutes as of now, it's getting ridiculous..
| WaffleIronMaker wrote:
| Yeah, get a move on!
| EcLRZjyicBSbwRV wrote:
| Not particularly, would assume something came up and the
| briefing needed to be pushed 30 min. Don't think it's
| particularly strange for the President's schedule to be moved
| around.
|
| As for the tweets, there is a tweet from yesterday:
| https://twitter.com/NASA/status/1546290906046816256
|
| What exactly were you looking for?
| moffkalast wrote:
| Time to see how much damage that micrometeoroid did.
| flyingbarron wrote:
| I'm pretty sure that if there was any bad news they'd be
| managing expectations.
|
| This is the quiet of confidence, I think :)
| moffkalast wrote:
| Here's to hoping :D
| windsurfer wrote:
| A man fired multiple bullets into a telescope and put many
| holes in the primary mirror, but the science capabilities were
| only minimally affected:
| https://en.wikipedia.org/wiki/Harlan_J._Smith_Telescope
|
| This telescope design already has a giant hole in the middle,
| and the light-collecting capabilities are hardly affected by
| small holes.
| ianai wrote:
| I think it's kind of like how FaceID or TouchID work
| regardless of orientation of face/fingerprint. Or how
| locating a radio source from data across multiple detectors
| would utilize math and any damage would drop out as slightly
| more noise. Modern cameras often have dead pixels in their
| detectors but they're just skipped in the output photos.
| jcims wrote:
| As long as it didn't hit any of the actuator mechanism my guess
| is it probably will just add a bit of noise/bias that they can
| largely eliminate.
|
| https://practicalastrophotography.com/a-brief-guide-to-calib...
| q1w2 wrote:
| Statistically speaking, it's quite concerning that such a large
| hit has occurred so soon after launch and thus does not bode
| well for the predicted lifespan of the telescope.
|
| We pray it was an extreme outlier.
| [deleted]
| aortega wrote:
| I have several telescopes and I have dropped things in the
| mirrors quite often. The decrease in quality from a damaged
| mirror is almost zero. You only lose a tiny part of the total
| surface. Is not like hubble that had the wrong shape. A tiny
| speck in the mirror is likely undetectable. Even a bigger one
| wont affect that much.
| dghughes wrote:
| It's like when you get a new phone and scratch the screen just
| taking the screen cover off.
___________________________________________________________________
(page generated 2022-07-11 23:01 UTC)