Starlink v1.0 (x60) flight 4 - Falcon 9 - CCSFS SLC-40 - 15.02.2020, 15:46 UTC

Автор tnt22, 08.02.2020 04:08:11

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Цитата Ken Kremer‏ @ken_kremer 4 ч. назад

Late today @SpaceX decided to stand down from tomorrow's #Starlink launch after lowering #Falcon9 rocket back horizontal so engineers could "take a closer look at a second stage valve component." Next launch attempt Mon, Feb 17, 1005AM. My pic from Sand AF Museums thru thick haze


tnt22

Цитата T.S. Kelso‏ @TSKelso 14 мин. назад

CelesTrak now has updated pre-launch SupTLEs for the Starlink-5 launch opportunity on Monday, Feb 17, at 15:05:55 UTC, with deployment at 15:20:46.420 UTC.


tnt22

Прогноз погоды L-1 на 17 февраля (LT)

Falcon 9 Starlink L4- L-1 Forecast-16 Feb

Пусковой день    (17.02) - ↑> 90 % GO
Резервный день (18.02) -        80 % GO

tnt22

Опубликована брошюра миссии

fifth_starlink_press_kit_0.pdf - 397.0 KB, 2 стр, 2020-02-16 16:53:47 UTC

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Трансляция пуска

Цитатана сайте SpaceX

или

на ТыТрубе

Начало трансляции: ~14:50 UTC / 17:50 ДМВ (ориентировочно за 15 мин до пуска)


tnt22

Пока не подняли...

Цитата Ken Kremer‏ @ken_kremer 5 мин. назад

310 PM Feb 16 F9/Starlink Status: Speed boat but no booster set to soar with next batch 60 #SpaceX #Starlink sats. Hopefully #Falcon9 rises soon for @#SpaceX launch Monday Feb 17, 1005 AM ET. Weather 90+% GO. Ken Kremer/spaceupclose.com


Анатолий Ревзин

подождите хоть немного! воскресенье в самом разгаре

tnt22

Цитата Brandon Wynn  :f09f9a80: ‏ @BrandonHSlam 54 мин. назад

Tonight, teams @SpaceX Pad-40 prepare to stand Falcon 9 up vertically ahead of tomorrow's StarLink mission Launch attempt

Launch Window opens at 10:05am EST @HoverSlamSpace

Full HD Gallery & Prints Avalible: https://hoverslamphotography.smugmug.com/Launch/Falcon-9---StarLink-4 ...





tnt22

ЦитатаFeb 17, 2020 05:46 Stephen Clark

SpaceX plans to launch 60 more Starlink Internet satellites into orbit from Cape Canaveral at 10:05 a.m. EST (1505 GMT) Monday aboard a Falcon 9 rocket powered by a thrice-flown first stage booster.

Weather conditions are forecast to be favorable Monday for SpaceX's fourth Falcon 9 flight of the year.

The official launch weather forecast issued by the U.S. Space Force's 45th Weather Squadron predicts a greater than 90 percent chance conditions will be acceptable for launch Monday morning from Cape Canaveral's Complex 40 launch pad.

"For the launch window Monday morning, skies will be mostly clear with a few cumulus clouds off the coast," the forecast team wrote Sunday. "With low-level winds from the east, there is a very slight chance for cumulus clouds to move onshore during the window.

"Therefore, the primary concern for launch is the cumulus cloud rule," the weather team concluded.

If the launch is delayed to Tuesday morning -- when SpaceX has a backup opportunity at 9:42 a.m. EST (1442 GMT) -- conditions are forecast to remain mostly favorable. A bit more moisture in the atmosphere could generate additional cloudiness, and there's an 80 percent chance of favorable weather Tuesday.

SpaceX's Falcon 9 rocket will deliver 60 flat-panel Starlink satellites into an elliptical, or egg-shaped, orbit ranging between 131 miles (212 kilometers) and 239 miles (386 kilometers) above Earth. The satellites will use their ion thrusters to maneuver into their higher orbit for testing, before finally proceeding to an operational orbit at an altitude of approximately 341 miles (550 kilometers).

Monday's mission will introduce a change from SpaceX's previous four dedicated Falcon 9 launches for the Starlink network, which deployed their payloads into circular orbits around 61 minutes after liftoff while flying south of Australia.

On Monday, SpaceX plans separation of the 60 Starlink platforms -- held to the Falcon 9 upper stage with retentions rods during launch -- around 15 minutes into the mission while flying over the North Atlantic Ocean.

SpaceX has not identified a reason for the change in the launch profile Monday.

While the upper stage carries the Starlink satellites into orbit, SpaceX's Falcon 9 first stage booster will descend to a propulsive landing on the company's recovery vessel "Of Course I Still Love You" in the Atlantic Ocean roughly 400 miles (630 kilometers) northeast of Cape Canaveral.

Two other ships are on station in the Atlantic to try and catch the two halves of the Falcon 9's payload shroud.

tnt22

Цитата Spaceflight Now‏ @SpaceflightNow 9 мин. назад

SpaceX is gearing up for launch of a Falcon 9 rocket on a foggy morning at Cape Canaveral. Liftoff with 60 Starlink Internet satellites is scheduled for 10:05am EST (1505 GMT).

tnt22

https://spaceflightnow.com/2020/02/17/timeline-for-falcon-9-launch-of-starlink-satellites-2/
ЦитатаTimeline for Falcon 9 launch of Starlink satellites
February 17, 2020 | Stephen Clark

Follow the key events of the Falcon 9 rocket's ascent to orbit with 60 satellites for SpaceX's Starlink broadband network.

The 229-foot-tall (70-meter) rocket is scheduled to lift off Monday at 10:05:55 a.m. EST (1505:55 GMT) from the Complex 40 launch pad at Cape Canaveral Air Force Station in Florida.

The Falcon 9 will head northeast from Cape Canaveral over the Atlantic Ocean to place the 60 Starlink satellites into an elliptical orbit ranging between 131 miles (212 kilometers) and 239 miles (386 kilometers) above Earth. The satellites will use their ion thrusters to maneuver into their higher orbit for testing, before finally proceeding to an operational orbit at an altitude of approximately 341 miles (550 kilometers).

The launch profile for Monday's mission is different from the previous four dedicated Falcon 9 launches for the Starlink network. Instead of deploying the Starlink satellites into a circular orbit around 61 minutes after liftoff, the Falcon 9 will release the stack of 60 flat-panel Starlink relay stations into an elliptical, or egg-shaped, orbit roughly 15 minutes into the mission.

The Falcon 9's first stage will target a landing on SpaceX's drone ship "Of Course I Still Love You" in the Atlantic Ocean nearly 400 miles (630 kilometers) northeast of Cape Canaveral.

The first stage booster launching tonight previously flew on three missions. The booster first launched from Cape Canaveral with a SpaceX Dragon cargo capsule on the CRS-17 space station resupply mission in May 2019, then launched again in July 2019 from Cape Canaveral on the CRS-18 cargo mission. Most recently, the booster flew on the JCSAT 18/Kacific 1 mission from Cape Canaveral on Dec. 16.

For Monday's mission, SpaceX will also attempt to catch both halves of the Falcon 9's payload fairing using nets aboard the ocean-going ships "Ms. Tree" and "Ms. Chief" in the Atlantic Ocean. The attempt to catch the fairing will come around 45 minutes after liftoff.

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


After the rocket's nine Merlin engines pass an automated health check, hold-down clamps will release the Falcon 9 booster for liftoff from pad 40.

T+0:01:13: Max Q


The Falcon 9 rocket reaches Max Q, the point of maximum aerodynamic pressure, a few seconds after surpassing the speed of sound.

T+0:02:32: MECO


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

T+0:02:35: Stage 1 Separation


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

T+0:02:43: Stage 2 Ignition


The second stage Merlin 1D vacuum engine ignites for an approximately six-and-a-half-minute burn to inject the Starlink satellites into a parking orbit.

T+0:03:10: 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.

T+0:07:07: Stage 1 Entry Burn Complete


A subset of the first stage's Merlin 1D engines completes an entry burn to slow down for landing. A final landing burn will occur just before touchdown on SpaceX's drone ship "Of Course I Still Love You" around 385 miles (620 kilometers) northeast of Cape Canaveral.

T+0:08:45: Stage 1 Landing


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

T+0:08:50: SECO 1


The Merlin 1D vacuum engine turns off after placing the Starlink satellites in an elliptical orbit ranging between 131 miles (212 kilometers) and 239 miles (386 kilometers) above Earth, with an inclination of 53 degrees.

T+0:14:46: Starlink Deployment


The 60 flat-panel Starlink satellites, each with a mass of about 573 pounds (260 kilograms) deploy from the Falcon 9 rocket's second stage.


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Трансляция (для любителей)
ЦитатаStarlink Mission Control Audio


tnt22

ЦитатаFeb 17, 2020 16:15 Spaceflight Now

Welcome to a fog shrouded Cape Canaveral, where SpaceX is readying a Falcon 9 to launch 60 Starlink broadband satellites.


cross-track

ЦитатаMax Andriyahov написал:
62 дня. Многовато!
Половинки обтекателя поймают? Хорошая тема для пари)
Не все у нас еще хорошо, кое-что - просто замечательно!

tnt22

Цитата Chris G - NSF‏ @ChrisG_NSF 16 мин. назад

#Falcon9 is counting down for launch at 10:05:55 EST (15:05:55 UTC). Latest weather forecast indicates at 90%+ chance of good ground weather and a "moderate" risk for Upper Level Wind sheer.