Dragon SpX-18 (CRS-18 ), IDA-3, RFTSat - Falcon 9-074 (B1056.2) - CCAFS SLC-40 - 25.07.2019 22:01 UTC

Автор tnt22, 26.06.2019 22:10:41

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tnt22

Текущая погода
Цитировать Chris G - NSF‏ @ChrisG_NSF 25 мин. назад
So, while we never give up on that 30% go chance, it's also important to know what we face.  This is the current radar.  All the rain is moving toward the space port. #SpaceX #CRS18 #NASA #Falcon9 #Dragon


tnt22

https://blogs.nasa.gov/spacestation/2019/07/24/dragon-targets-launch-today-as-science-ramps-up-aboard-busy-station/
ЦитироватьDragon Targets Launch Today as Science Ramps Up Aboard Busy Station

Mark Garcia
Posted Jul 24, 2019 at 11:26 am

Forecasters predict a 30% chance of favorable weather today for the liftoff of a U.S. cargo craft at 6:24 p.m. EDT from Florida. Mission managers are getting ready to launch the SpaceX Dragon loaded with new science experiments and the International Docking Adapter-3.

Dragon is planned to arrive at the orbiting lab Friday at 10 a.m. NASA Flight Engineers Nick Hague and Christina Koch will be on duty in the cupola to command the Canadarm2 robotic arm to capture Dragon.
...

tnt22

Цитировать07/24/2019 20:52 Stephen Clark

A wave of thunderstorms is passing over the Cape Canaveral area this afternoon, bringing dark clouds, rain and thunder to the Kennedy Space Center. Here's a view from the KSC press site a few minutes ago.



tnt22

ЦитироватьChris G - NSF‏ @ChrisG_NSF 22 мин. назад
And the countdown has BEGUN!  We're at T-3hrs 45mins and COUNTING. Moment of truth will be the weather.


tnt22

Цитировать John Kraus‏ @johnkrausphotos 32 мин. назад
Falcon 9 and Dragon are poised to launch the CRS-18 mission to the International @Space_Station at 6:24pm EDT today, although poor weather conditions around Cape Canaveral are a concern.  This is the second flight of this Falcon 9 booster, and third flight of this Dragon capsule!




tnt22

https://blogs.nasa.gov/kennedy/2019/07/24/spacex-crs-18-launch-countdown-milestones-for-july-24-liftoff/
ЦитироватьSpaceX CRS-18: Launch Countdown Milestones for July 24 Liftoff

Anna Heiney
Posted Jul 24, 2019 at 3:13 pm

The launch of SpaceX's 18th commercial resupply services mission to the International Space Station for NASA is scheduled for 6:24 p.m. EDT with an instantaneous launch window. The SpaceX Falcon 9 rocket and Dragon spacecraft have been moved to the vertical launch position. Launch coverage will begin at 6 p.m. on NASA Television and the agency's launch blog.

Meteorologists with the U.S. Air Force 45th Space Wing continue to predict a 30% chance of favorable weather for liftoff. The primary weather concerns are the cumulus cloud rule, lightning rule and attached anvil rule.

Packed with more than 5,000 pounds of research, crew supplies and hardware, the Dragon spacecraft will launch on a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

Mission Timeline (all times approximate)
COUNTDOWN
– 00:38:00     SpaceX Launch Director verifies go for propellant load
– 00:35:00     RP-1 (rocket grade kerosene) loading begins
– 00:35:00     1st stage LOX (liquid oxygen) loading begins
– 00:16:00     2nd stage LOX loading begins
– 00:07:58     Dragon transitions to internal power
– 00:07:00     Falcon 9 begins pre-launch engine chill
– 00:01:00     Command flight computer to begin final prelaunch checks
– 00:01:00     Propellant tanks pressurize for flight
– 00:00:45     SpaceX Launch Director verifies go for launch
– 00:00:03     Engine controller commands engine ignition sequence to start
– 00:00:00     Falcon 9 liftoff

tnt22

Цитировать07/24/2019 23:24 Stephen Clark

T-minus 2 hours and counting. The Falcon 9 countdown continues ticking toward a launch time of 6:24:30 p.m. EDT (2224:30 GMT).

SpaceX's launch conductor will verify all members of the launch team are ready to proceed with final 35-minute automated countdown sequence at 5:46 p.m. EDT (2146 GMT), followed by the start of filling the rocket with super-chilled, densified RP-1 kerosene and liquid oxygen propellants at 5:49 p.m. EDT (2149 GMT).

Liquid oxygen loading into the second stage will begin at T-minus 16 minutes, at 6:08 p.m. EDT (2208 GMT), followed by final chilldown of the rocket's nine Merlin first stage engines, a final pre-flight engine steering check, switching of the rocket to internal power, and pressurization of the Falcon 9's propellant tanks leading up to liftoff.

tnt22

Цитировать Chris G - NSF‏ @ChrisG_NSF 3 мин. назад
Range just confirmed that they are not *currently* working any weather issues that will prevent the pre-fueling pressurizations and helium work on the #Falcon9. That's currently... NOT a prediction for launch time.


tnt22

Цитировать07/24/2019 23:46 Stephen Clark

A check of the current status of weather conditions at Cape Canaveral shows the detached anvil rule is currently observed "no go" for launch. But conditions will likely change, for better or worse, as the countdown ticks toward liftoff time nearly two hours from now.

The launch weather team at Cape Canaveral is closely monitoring conditions during today's countdown, as storms roll through Central Florida driven by southwesterly winds aloft.

The chief weather concerns today are with violating the attached anvil, detached anvil, and lightning rules.

For the lightning rule, the Air Force range weather team tracks lightning strikes to ensure no discharges have recently occurred within a 10-mile radius of the launch pad, or within 10 miles of the downrange flight path of the Falcon 9 rocket.

The anvil cloud rules address concerns with rocket-triggered lightning.

"Those are a little bit more scary to us because it may look like the weather is clear, there may not have been a lightning strike in the past 30 to 45 minutes, but if you send a rocket through that (anvil) cloud, that cloud could still be charged enough to trigger additional lightning strikes," said Will Ulrich, the launch weather officer from the 45th Weather Squadron, during a pre-launch press conference this morning.

tnt22

Цитировать07/24/2019 23:47 Stephen Clark

All weather parameters are currently observed "go" for launch at this time.

tnt22

Цитировать07/24/2019 23:49 Stephen Clark

The SpaceX launch team reports checkouts of the Falcon 9's autonomous flight termination system are acceptable.

tnt22

Цитировать John Kraus‏ @johnkrausphotos 31 мин. назад
Here's a look at the second stage of today's Falcon 9 vehicle, featuring a new gray stripe.



tnt22


tnt22

Цитировать07/25/2019 00:34 Stephen Clark

T-minus 50 minutes. Here are some statistics on today's launch:
    [/li]
  • 73rd launch of a Falcon 9 rocket since 2010
  • 81st launch of Falcon rocket family since 2006
  • 2nd launch of Falcon 9 Vehicle No. 56
  • 58th Falcon 9 launch from Cape Canaveral
  • 43rd Falcon 9 launch from pad 40
  • 18th SpaceX CRS mission to the space station
  • 20th flight of a Dragon spacecraft
  • 7th Falcon 9 launch of 2019
  • 9th launch by SpaceX in 2019
  • 7th orbital-class launch overall from Cape Canaveral in 2019
  • 7th time SpaceX has flown a reused Dragon capsule
  • 24th time SpaceX launched a previously-flown booster⁠

tnt22


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tnt22

Цитировать Chris G - NSF‏ @ChrisG_NSF 4 мин. назад
T-45mins. Will be interesting to see where the decision point will be here. This is all sliding toward the space port. #SpaceX #Falcon9 #Dragon #NASA #CRS18



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tnt22

Цитировать07/25/2019 00:50 Stephen Clark

SpaceX's launch conductor has polled his team, and all stations are "go" to begin filling the Falcon 9 rocket with propellants.