Author Topic: SpaceX F9 / Dragon 2 : CRS2 SpX-21 - Mission Updates : Dec - Jan (2020/21)  (Read 188614 times)

Online FutureSpaceTourist

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https://twitter.com/nasaspaceflight/status/1348644408720318468

Quote
DELAYED. No undocking for Dragon CRS-21 today due to splashdown weather! The call came two minutes before undocking commands.

Offline edkyle99

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I apologize for this noob question as I am almost certain this has been answered before, but somehow I screwed myself with the search engine.

Can someone clarify why Dragon 1 wasn't able to return to East Coast for fast science?
"Dragon 1" jettisoned its trunk after deorbit burn, so the trunk came down with the capsule, more or less.  That dictated a West Coast splashdown.  "Dragon 2" jettisons its trunk before the deorbit burn, so no deorbiting trunk to worry about - at least during spacecraft reentry.

 - Ed Kyle

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Center of gravity limits are apparently tight.  Huntsville and Houston stressed that multiple times during the late stowage.  The fabric transfer bags, CTBs (contingency transfer bags?) not only had to be placed in the correct location, but the correct orientation.  They have a zipper on 3 edges and hinge on the other end on one side.  All CTBs had to be placed with the hinged side facing a certain direction (dragon starboard) and the end the the zipper dragon forward.  Hard to believe the weight of a zipper on one end or lack of one on an edge (making that side lighter) could be that critical.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Jansen

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Hard to believe the weight of a zipper on one end or lack of one on an edge (making that side lighter) could be that critical.

Possibly the zipper is a visual indicator of where the weight is distributed, since the bags are opaque.

Offline Ken the Bin

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Updated NGA notice removing the splashdown hazard warning associated with today's postponed departure.  All four areas are currently in play for the next attempt.

New:
Quote from: NGA
111836Z JAN 21
NAVAREA IV 35/21(11).
WESTERN NORTH ATLANTIC.
GULF OF MEXICO.
FLORIDA.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   IN AREAS BOUND BY:
   A. 140100Z TO 140130Z, ALTERNATE
      150035Z TO 150105Z JAN
      29-20-45N 080-13-48W, 28-50-56N 079-43-04W,
      28-21-14N 080-13-48W, 28-50-56N 080-44-31W.
   B. 140105Z TO 140135Z, ALTERNATE
      150045Z TO 150115Z JAN
      30-17-45N 080-35-59W, 29-47-56N 080-04-58W,
      29-18-14N 080-35-59W, 29-47-56N 081-07-01W.
   C. 140110Z TO 140140Z, ALTERNATE
      150045Z TO 150115Z JAN
      31-24-45N 080-15-00W, 30-54-56N 079-43-36W,
      30-25-14N 080-15-00W, 30-54-56N 080-46-23W.
   D. 140110Z TO 140140Z, ALTERNATE
      150050Z TO 150120Z JAN
      28-59-45N 083-45-00W, 28-29-56N 083-14-20W,
      28-00-14N 083-45-00W, 28-29-56N 084-15-39W.
2. CANCEL NAVAREA IV 32/21.
3. CANCEL THIS MSG 150220Z JAN 21.

Cancelled:
Quote from: NGA
101741Z JAN 21
NAVAREA IV 32/21(11).
WESTERN NORTH ATLANTIC.
GULF OF MEXICO.
FLORIDA.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   IN AREAS BOUND BY:
   A. ALTERNATE 140100Z TO 140130Z AND
      150035Z TO 150105Z JAN
      29-20-45N 080-13-48W, 28-50-56N 079-43-04W,
      28-21-14N 080-13-48W, 28-50-56N 080-44-31W.
   B. 120155Z TO 120225Z JAN, ALTERNATE
      140105Z TO 140135Z AND
      150045Z TO 150115Z JAN
      30-17-45N 080-35-59W, 29-47-56N 080-04-58W,
      29-18-14N 080-35-59W, 29-47-56N 081-07-01W.
   C. ALTERNATE 140110Z TO 140140Z AND
      150045Z TO 150115Z JAN
      31-24-45N 080-15-00W, 30-54-56N 079-43-36W,
      30-25-14N 080-15-00W, 30-54-56N 080-46-23W.
   D. ALTERNATE 140110Z TO 140140Z AND
      150050Z TO 150120Z JAN
      28-59-45N 083-45-00W, 28-29-56N 083-14-20W,
      28-00-14N 083-45-00W, 28-29-56N 084-15-39W.
2. CANCEL NAVAREA IV 26/21.
3. CANCEL THIS MSG 150220Z JAN 21.

Offline Jansen

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https://www.nasaspaceflight.com/2021/01/dragon-departs-iss-with-science/

SpaceX calls-off CRS-21 Dragon return due to recovery weather off Florida

Offline Jansen

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NASA TV

Jan. 12, Tuesday
8 a.m. -- Coverage of the undocking of the SpaceX CRS-21 Cargo Dragon spacecraft from the International Space Station. (Undocking scheduled at appx. 8:40 a.m. EST) – Johnson Space Center (All Channels)
« Last Edit: 01/12/2021 03:55 am by Jansen »

Offline Sam Ho

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Quote
We and @SpaceX are targeting 8:40 a.m. EST on Tuesday, Jan. 12, for undocking from @Space_Station of an upgraded SpaceX Dragon spacecraft filled with more than 4,400 pounds of experiments and other cargo. Watch live beginning at 8 a.m. EST on  https://nasa.gov/live.
https://twitter.com/NASA/status/1348856471509938177

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CAPCOM updated the crew on results of the U-6 weather brief which predicts Tampa weather as go.  Another brief will be at undock-3 hours...  and they switched to a pink toned external feed...
« Last Edit: 01/12/2021 09:37 am by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Great view on the iSS Ustream of the hatches opened again into Dragon to refresh time sensitive samples and check on the rodents...
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline SMS

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---
SMS ;-).

Offline SMS

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---
SMS ;-).

Offline RocketLover0119

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Edit: misread that docking was now 9:05
« Last Edit: 01/12/2021 12:42 pm by RocketLover0119 »
"The Starship has landed"

Offline theonlyspace

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Can see Dragon very good now

Offline theonlyspace

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Why is Dragon waiting a day and half before it splashes down tomorrow night?

Online FutureSpaceTourist

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https://twitter.com/nasa/status/1348991526865494021

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The @SpaceX cargo Dragon is "go" for undocking. @AstroVicGlover is monitoring the spacecraft's departure from the @Space_Station.

Offline RocketLover0119

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Sunset :)

6 minutes to undocking
« Last Edit: 01/12/2021 01:03 pm by RocketLover0119 »
"The Starship has landed"

Offline RocketLover0119

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Undocking confirmed!
"The Starship has landed"

Offline theonlyspace

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Separaation confirmed  805 CST

Online Chris Bergin

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