Iridium Next Flight 8 (x10) - Falcon 9 (B1049.2) - Vandenberg SLC-4E - 11.01.2019, 15:31 UTC

Автор tnt22, 13.08.2018 21:34:33

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tnt22


tnt22

ЦитироватьChris G - NSF‏ @ChrisG_NSF 11:27 - 10 янв. 2019 г.

We're less than a day away from #SpaceX's 1st launch of the year w/ the final @IridiumComm NEXT satellites. Launch is targeted for 07:31:33 PST (1531:33 UTC) tomorrow, 11 Jan., from California. Right now, there will be a 1st stage landing attempt but NO fairing recovery attempt.


tnt22

ЦитироватьSpaceX‏Подлинная учетная запись @SpaceX 11 ч. назад

Falcon 9 and 10 Iridium NEXT satellites vertical on SpaceX's California launch pad at Vandenberg Air Force Base. Tomorrow's instantaneous launch window is at 7:31 a.m. PST, 15:31 UTC → http://spacex.com/webcast 


tnt22

ЦитироватьJay L. DeShetler‏ @jdeshetler 11 ч. назад

SpaceX Falcon 9 - Iridium NEXT 8 is now in vertical position for 7:31 am PST launch tomorrow. However morning coastal fog is expecting to block the view from our remote cameras so finger crossing! @NASASpaceflight @IridiumComm @SpaceX



tnt22

https://spaceflightnow.com/2019/01/11/falcon-9-iridium-8-mission-status-center/
ЦитироватьLive coverage: SpaceX set for its first launch of the year
January 11, 2019Stephen Clark

01/11/2019 12:10 Stephen Clark

The launch of 10 more upgraded spacecraft aboard a SpaceX Falcon 9 rocket Friday will complete the build-out of Iridium's modernized $3 billion global communications network, setting up for the debut of new broadband and aircraft tracking services in the coming months.

With Friday's launch, SpaceX and Iridium will have teamed up for the launch of 75 payloads on eight Falcon 9 flights since January 2017, giving Iridium a full complement new spacecraft to fully replace and upgrade its aging voice and data relay network.

The 229-foot-tall (70-meter) Falcon 9 rocket, powered by a reused first stage booster that previously flew in September from Cape Canaveral, is set for liftoff at 7:31:33 a.m. PST (10:31:33 a.m. EST; 1531:33 GMT) Friday from Vandenberg Air Force Base, California. The two-stage rocket will deploy the 10 satellites — built in partnership by Thales Alenia Space and Northrop Grumman Innovations Systems — one at a time over a 15-minute period approximately an hour after liftoff.

SpaceX plans to land the Falcon 9's first stage again after Friday's launch on a drone ship positioned the Pacific Ocean a few hundred miles south of Vandenberg. The launch company's net-fitted payload fairing retrieval ship, Mr. Steven, is not expected to attempt to catch the Falcon 9's nose shroud Friday.

Matt Desch, Iridium's chief executive, told reporters before the launch that the addition of 10 more satellites to the network — enough to complete the total replacement of the constellation — is "a huge deal."

Read our full story.

tnt22

Цитировать01/11/2019 12:19 Stephen Clark

The official launch weather forecast from the U.S. Air Force's weather team at Vandenberg predicts a 60 percent probability of favorable conditions for Friday's instantaneous launch window.

tnt22

ЦитироватьMatt Desch‏ @IridiumBoss 26 мин. назад

At VAFB - looking good for Iridium-8 with light ground winds so far. Looks great on pad. #letsdothis!



tnt22

https://spaceflightnow.com/2019/01/11/launch-timeline-for-spacexs-eighth-mission-for-iridium/
ЦитироватьLaunch timeline for SpaceX's eighth mission for Iridium
January 11, 2019Stephen Clark

Follow the key events of the Falcon 9 rocket's ascent to orbit with the another set of 10 next-generation satellites for Iridium's voice and data relay fleet.

The 229-foot-tall (70-meter) rocket will lift off Friday at 7:31 a.m. PST (10:31 a.m. EST; 1531 GMT) from Space Launch Complex 4-East at Vandenberg Air Force Base in California.

Data source: SpaceX
Спойлер
T-0:00:00: Liftoff


After the rocket's nine Merlin 1D engines pass an automated health check, the Falcon 9 is released from Space Launch Complex 4-East at Vandenberg Air Force Base, California.

T+0:01:01: Max-Q


The Falcon 9 rocket reaches Max Q, the point of maximum aerodynamic pressure. The first stage's nine Merlin 1D engines produce about 1.7 million pounds of thrust.

T+0:02:27: MECO


The Falcon 9's nine Merlin 1D engines shut down.

T+0:02:30: Stage 1 Separation


The Falcon 9's first stage separates from the second stage moments after MECO.

T+0:02:38: Stage 2 Ignition


The second stage Merlin 1D vacuum engine ignites for an approximately 6-minute burn to inject the Iridium Next satellites into a parking orbit.

T+0:03:13: Fairing Jettison


The 5.2-meter (17.1-foot) diameter payload fairing jettisons once the Falcon 9 rocket ascends through the dense lower atmosphere. The 43-foot-tall fairing is made of two clamshell-like halves composed of carbon fiber with an aluminum honeycomb core. The fairing halves will deploy parafoils for a controlled descent into the Pacific Ocean.

T+0:03:13: Stage 1 Boost-back Burn


A subset of the Falcon 9's engines ignited to help the rocket reverse course and target a landing on SpaceX's drone ship "Just Read the Instructions" offshore Vandenberg Air Force Base.

T+0:05:30: Stage 1 Entry Burn


A subset of the first stage's Merlin 1D engines ignite for an entry burn to slow down for landing. A final landing burn will occur just before touchdown.

T+0:07:14: Stage 1 Landing


The Falcon 9 rocket's first stage booster touches down on SpaceX's drone ship in the Pacific Ocean.

T+0:08:46: SECO 1


The Merlin 1D vacuum engine turns off after placing the Iridium satellites in a temporary parking orbit, beginning at 43-minute coast in space.

T+0:51:48: Stage 2 Restart


The Falcon 9's second stage engine ignites again for a 9-second burn to circularize its orbit.

T+0:51:51: SECO 2


The Merlin 1D vacuum engine shuts down after reaching a target orbit about 388 miles (625 kilometers) high with an inclination of 86 degrees.

T+0:56:52: Begin Iridium Deployments


The 1,896-pound (860-kilogram) Iridium Next satellites begin deploying from their two-tier dispenser on the Falcon 9 rocket's second stage, separating at intervals of approximately every 90 seconds.

T+1:11:52: End Iridium Deployments


The last of the 10 Iridium Next satellites will separate from the rocket.
[свернуть]

tnt22

ЦитироватьChris G - NSF‏ @ChrisG_NSF 7 мин. назад

This means that right now the weather is acceptable for launch. #SpaceX #Falcon9 #Iridium8
Цитировать8 мин. назад

RANGE is GO for launch.

tnt22


tnt22

Цитировать01/11/2019 17:58 Fueling begins Stephen Clark

"Launch auto sequence has started." The countdown is starting the first steps to begin pumping propellants into the 229-foot-tall Falcon 9 at Vandenberg's Space Launch Complex 4-East.

RP-1 kerosene and liquid oxygen will be pumped into the Falcon 9 rocket. The liquid oxygen is chilled to near minus 340 degrees Fahrenheit (minus 206 degrees Celsius).

tnt22


tnt22

Цитировать01/11/2019 18:04 Stephen Clark

T-minus 27 minutes. Some statistics on today's launch:
    [/li]
  • 67th launch of a Falcon 9 rocket since 2010
  • 73rd launch of Falcon rocket family since 2006
  • 14th Falcon 9 launch from Vandenberg Air Force Base
  • 2nd launch of Falcon 9 booster No. 49
  • 4th launch of an all-Block 5 version of the Falcon 9 from Vandenberg
  • 8th launch for Iridium by SpaceX
  • 30th overall launch with Iridium satellites
  • 12th launch of Thales Alenia Space payloads on Falcon 9
  • 1st Falcon 9 launch of 2019
  • 1st launch by SpaceX in 2019
  • 1st launch from Vandenberg Air Force Base in 2019
  • 11th flight of a Falcon 9 Block 5 first stage
  • 14th flight of a Falcon 9 Block 5 second stage
  • 43rd attempt to land a Falcon 9 first stage

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tnt22