Poll

Given the weather, do you think the launch will happen today?

Yes
47 (35.3%)
No
86 (64.7%)

Total Members Voted: 133

Voting closed: 05/28/2020 07:21 pm


Author Topic: SpaceX Falcon 9 / Dragon 2 : SpX-DM2 : May 27, 2020 : DISCUSSION  (Read 366476 times)

Offline daedalus1

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The topic was Dragon not launching due to weather and the next opportunities don't look any better, suggesting this is not a good place to launch from. Soyuz was not the topic, merely an example of others.

Online zubenelgenubi

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Moderator: Discussing the meteorological suitability of Cape Canaveral/Kennedy Space Center as a human spaceflight spaceport is off-topic for this thread.

It would be suitable as a stand-alone thread elsewhere.  Perhaps in the General Discussion section?

Ditto regarding comparing launch criteria between launch vehicles, or between spaceports.
« Last Edit: 05/29/2020 06:14 pm by zubenelgenubi »
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Offline meberbs

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An excerpt from the forecast posted in the updates thread: "the pesky upper-level trough..."

Someone at the weather office has some personal feelings about the weather patterns and what they want to happen  :)

Offline rdale

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We have feelings too :)

Offline DiskOperatingSystem

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Crew Dragon Closeout Crew Positions Speculation
« Reply #884 on: 05/29/2020 08:00 pm »
I originally posted this to r/spacex from a discussion started on r/SpaceXLounge and I thought some of you might find this valuable.

Over at the lounge, a discussion was started about what job each Closeout Crew member is assigned to. These are my best guesses based on my obsession with closeout crews and pad ops. The closeout crew appears to also be the ones assisting the astronauts in getting dressed in the operations and checkout building and most of them followed Bob and Doug out to the pad. Again, this will need more eyes and is merely an attempt at a preliminary breakdown of the closeout crew from watching and rewatching Wednesday’s pre-launch activities.

It looks like #4 is the Closeout and Prep Chief (identifiable by her glasses).

6 and 12 are the ingress techs who actually physically strap the astronauts in and attach the umbilicals to the spacecraft as well as assist the astronauts with the suits from suit up to ingress (hence why they were riding in the car with them). 6 and 12 appear to be the personnel assigned to Bob and Doug. They suited them up, rode out and strapped them in, so I think they’re kinda the personal assistants for whatever they need. But primarily, they are assigned to closeout operations and technical support for each specific astronaut (it seems they have a specific Astro, but this is unconfirmed).

3 is a photographer.

7 is the flight surgeon.

11 is a suit tech like 6 and 12, probably a support tech for 12.

5 and 9 appear to be in charge of hatch closure/locking, as well as hatch opening.

1 and 2 were also working intensely with 5 and 9 on hatch opening, so I think there are about 4-5 positions in total who are hatch operators. I was unable to identify one person who was assisting.

9 was also trying very hard to keep Doug from hitting the hatch on egress. I think 5 and 9 might also work on clearing out FOD as they were moving around the big hose. 5 was also seen carrying the umbilical boxes before egress so um, 5 is bit of everything maybe.

8 looks like an environmental inspector as they were scanning the area before egress.

10 is a fellow suit and seat tech.

29 is also some sort of support staff but it is unclear what she does.

19 is currently unknown, but they appear to closely work with 4, the chief. Perhaps a second in command maybe? Keep your eyes on 4 and 19, they seem to be in charge.

That’s all I got so far, will need to watch the NASATV Media stream to continue putting together a full picture. This is only from Wednesday, so these positions could very well change or be wrong come Saturday. Also take note that there are more than just listed here, though I can’t get everyone due to the cameras cutting away. But these are my best guesses. I suspect though that we’ll be better able to tell who does what during the next launch opportunity.
« Last Edit: 05/29/2020 08:01 pm by DiskOperatingSystem »

Offline rdale

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Today’s forecast was for a 60% of thunderstorms this afternoon... It’s mostly sunny with the closest storm over Orlando moving north.

Offline Orbiter

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Today’s forecast was for a 60% of thunderstorms this afternoon... It’s mostly sunny with the closest storm over Orlando moving north.

Storms are just now initiating over Tampa, moving east.

Let's hope this is the trend for tomorrow!
KSC Engineer, astronomer, rocket photographer.

Offline rdale

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Well looks like bad news... Michael Baylor tweeted out that recovery weather is bad, and that prompted me to check for more ocean weather. Sadly the cold front that sweeps off the east coast tonight will fire up thunderstorms over the Atlantic tomorrow. It looks to me like more of an abort zone issue versus recovery zone, but maybe those are close enough to not matter.

I had not looked at that earlier - I was only looking at waves - so apologize about not thinking of lightning. In any event, there’s no way this forecast will be changing so if that’s the true concern I see no way they move into the count tomorrow.
« Last Edit: 05/30/2020 03:03 am by rdale »

Offline Oersted

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Maybe post in the update thread if it looks that certain, rdale?

Offline rdale

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I asked Michael to clarify what aspect of the weather was at issue so will await his reply. I think it’s more of an abort issue, but he said recovery zone so that’s why I was waiting.

Offline Orbiter

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10z HRRR still not looking good.

This is one of many models the launch team will be using to decide to proceed with the count this morning.
KSC Engineer, astronomer, rocket photographer.

Offline Hog

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Is there a part party thread for todays attempt?
« Last Edit: 05/30/2020 12:10 pm by Hog »
Paul

Offline rdale

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So the FL part of the forecast still doesn’t look that bad - but obviously nothing has changed with storms in the abort zone. However the count has started, so I’m really not sure why :) I’ll await the new DISC thread to go into more detail but if those in FL are saying it’s too bad to go through I’m not going to put much effort in.

Offline ZachS09

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Is there a part party thread for todays attempt?

You can find the Launch, Land, and Relaunch Party Thread, which has all the jokes in the world for you to laugh at.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline John Alan

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« Last Edit: 05/30/2020 01:10 pm by John Alan »

Offline tommy099431

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Chance of thunderstorms at 90% was based on forecast from the weather service. It seems like it’s switched from Wednesday, it was stormy in the morning and got better as the day got on and today is good in the morning and chance of getting crappy in the afternoon.

Offline rdale

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I’m totally confused :)  Michael said recovery weather was a concern, but USAF says recovery weather is not an issue. Based on storms over the Atlantic, that must not have been an issue either. And tommy said the launch was scrubbed, but now it appears he was just posting stuff for fun.

#Sigh

So apparently we aren’t canceled, and booster weather isn’t an issue, so I’ll carry on. Today’s setup looks slightly better than a normal Florida summer afternoon, but in the end not much different than Wednesday was in the big picture. I don’t see anything widespread that would cause them to cancel early. I’ll keep monitoring!

Offline Michael Baylor

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I’m totally confused :)  Michael said recovery weather was a concern, but USAF says recovery weather is not an issue. Based on storms over the Atlantic, that must not have been an issue either. And tommy said the launch was scrubbed, but now it appears he was just posting stuff for fun.

#Sigh

So apparently we aren’t canceled, and booster weather isn’t an issue, so I’ll carry on. Today’s setup looks slightly better than a normal Florida summer afternoon, but in the end not much different than Wednesday was in the big picture. I don’t see anything widespread that would cause them to cancel early. I’ll keep monitoring!

To clarify, I meant abort recovery weather not booster recovery weather. Sorry for the confusion. As of this morning, conditions are acceptable to proceed with the countdown. I am not sure the specifics of which regions were the concern.

Offline matthewkantar

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When someone posts: "Launch is going to be scrubbed today because of participation," It is probably not a gold medal post. The post may get a ribbon for participating.

Offline Perchlorate

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When someone posts: "Launch is going to be scrubbed today because of participation," It is probably not a gold medal post. The post may get a ribbon for participating.

When folks just solemnly pronounce as fact their not-too-well-grounded opinion, just to participate in the discussion, the signal-to-noise ratio of the forum drops...

...precipitously::)
« Last Edit: 05/30/2020 02:33 pm by Perchlorate »
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