GPS III SV04 - Falcon 9-098 (B1062.1) - CCAFS SLC-40 - 05.11.2020 23:24 UTC

[Spacetourist]

Почему у этого спутника нет собственного имени, как у предыдущих?

[tnt22]

Источник - 5000 x 2813 px (669 kB)

[tnt22]

Прогноз погоды L-0 на 3 октября 2020 г. (UTC)

Falcon 9 GPS III-4 L-0 Forecast

Пусковой день   (03.10) - = 70 % GO
Резервный день (04.10) - ↓ 20 % GO

[tnt22]

 Spaceflight Now @SpaceflightNow 3 мин. назад

The US military's next GPS navigation satellite is ready for launch from Cape Canaveral at 9:43pm EDT (0143 GMT) on a SpaceX Falcon 9 rocket.

SpaceX plans to land the booster on a drone ship to fly again in 2021 with a future GPS satellite.

https://spaceflightnow.com/2020/10/02/falcon-9-gps-3-sv04-mission-status-center/

[tnt22]

 Gavin - SpaceXFleet.com @SpaceXFleet 1 ч. назад

By special request... the full three day track of the SpaceX fleet as they switched between the recovery sites.

I am so sorry for creating this.

[tnt22]

10/02/2020 21:46 Stephen Clark

The official launch weather forecast issued this morning by the 45th Weather Squadron at Cape Canaveral calls for a 70% chance of favorable conditions for launch of a Falcon 9 rocket tonight.

The 15-minute launch window opens at 9:43 p.m. EDT (0143 GMT).

The primary weather concern tonight is with a frontal boundary that could bring clouds over the spaceport. The weather rule forecasters expect to monitor most closely is the thick cloud rule.

The weather team expects mostly cloudy skies at launch time tonight, with scattered clouds at 12,000 feet and broken clouds at 24,000 feet. Winds are predicted to be from the north at 12 to 17 mph, and the temperature at launch time should be around 76 degrees Fahrenheit.

More widespread rain showers and thunderstorms are forecast for Saturday evening. If the Falcon 9 launch gets delayed to Saturday night, the forecast calls for just a 20 percent chance of favorable conditions for liftoff.

[tnt22]

 Falcon 9 Block 5 @Falcon9Block5 2 мин. назад

#SpaceX #GPSIIISV04 Countdown NET Update: T-5:47:00. SpaceX and @45thSpaceWing teams have released the first of many weather balloons to monitor upper-level wind conditions leading up to T-0.  Weather is 70% favorable and #Falcon9 is healthy.

[Pirat5]

Почему у этого спутника нет собственного имени, как у предыдущих?

Вариантов два:
1) начиная с этого спутники будут безымянные.
2) имя откроют после успешного выведения на орбиту.
На обтекателе на патчах имя тоже отсутствует.

[tnt22]

 Spaceflight Now @SpaceflightNow 25 мин. назад

The military's next GPS navigation satellite, set for launch Friday night, is nicknamed "Sacagawea" after the Shoshone woman who helped guide Lewis and Clark's exploration of the American West in the first decade of the 1800s. https://spaceflightnow.com/2020/10/02/space-force-announces-new-nicknames-for-gps-satellites/

[Чебурашка]

Чую будет очередной Скраб.
Отправляюсь спать с чистой совестью  

[tnt22]

На обтекателе на патчах имя тоже отсутствует.

Имена присвоены всем КА до SV08 включительно - см ссыль в #68.

Все (присвоенные и будущие) имена носят неофициальный характер и формально не являются частью программы GPS-3

nicknames selected by the GPS 3 team are "unofficial and not a formal part of the GPS 3 program."

[tnt22]

 Falcon 9 Block 5 @Falcon9Block5 19 мин. назад

#SpaceX #GPSIIISV04 Countdown NET Updates:
T-4:45:00
Range Controllers on Station
T-4:35:00
Falcon 9 Attitude Control System N2 Loading
Weather is 70% favorable and #Falcon9 is healthy.

[tnt22]

https://spaceflightnow.com/2020/10/02/falcon-9-launch-timeline-with-the-gps-3-sv04-navigation-satellite/

Falcon 9 launch timeline with the GPS 3 SV04 navigation satellite

October 2, 2020 | Stephen Clark

SpaceX's Falcon 9 rocket is set for liftoff from Cape Canaveral on Friday night carrying the U.S. Air Force's next GPS 3-series navigation satellite destined for an orbit more than 12,000 miles above Earth.

The 229-foot-tall (70-meter) rocket is poised for launch from pad 40 at Cape Canaveral Air Force Station in Florida at 9:43 p.m. EDT Friday (0143 GMT Saturday) at the opening of a 15-minute launch window.

The Lockheed Martin-built GPS 3 SV04 satellite mounted atop the rocket is the fourth member of an upgraded generation of GPS navigation spacecraft, featuring higher-power signals that are more resilient to jamming, and additional broadcast frequencies to make the GPS network more interoperable with other navigation satellite fleets.

The timeline below outlines the launch sequence for the Falcon 9 flight with the GPS 3 SV04 spacecraft.

See our Mission Status Center for details on the launch.

Data source: SpaceX

Спойлер

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+0:01:11: 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+0:02:31: 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+0:02:42: First Ignition of Second Stage


The second stage Merlin 1D vacuum engine ignites for a five-and-a-half-minute burn to put the rocket and GPS 3 SV03 into a preliminary parking orbit.

T+0:03:27: 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+0:06:47: First Stage Entry Burn Complete


The Falcon 9 rocket's first stage descends back to Earth as its engines fire for the entry burn before landing on SpaceX's drone ship in the Atlantic Ocean.

T+0:08:07: SECO 1


The second stage of the Falcon 9 rocket shuts down after reaching a preliminary orbit. The upper stage and GPS 3 SV04 begin a coast phase scheduled to about one hour before the second stage Merlin-Vacuum engine reignites.

T+0:08:33: First Stage Landing


The Falcon 9's first stage booster lands on SpaceX's drone ship "Just Read The Instructions" positioned in Atlantic Ocean northeast of Cape Canaveral.

T+1:03:32: Second Ignition of Second Stage


The Falcon 9's second stage Merlin engine restarts to propel the GPS 3 SV04 navigation satellite into an elliptical transfer orbit ranging in altitude between about 250 miles (400 kilometers) and 12,550 miles (20,200 kilometers), with an inclination of 55 degrees.

T+1:04:17: SECO 2


The Merlin engine shuts down after a planned 45-second burn to put the GPS 3 SV04 satellite in the proper orbit for deployment.

T+1:29:18: GPS 3 SV04 Separation


The GPS 3 SV04 satellite separates from the Falcon 9 rocket in an elliptical transfer orbit with an apogee, or high point, near the altitude of the GPS fleet, located around 12,550 miles (22,200 kilometers) above Earth.[/b]

[свернуть]

[tnt22]

 Falcon 9 Block 5 @Falcon9Block5 6 мин. назад

#SpaceX #GPSIIISV04 Countdown NET Update: T-3:00:00
Launch Area Evacuation. Weather is 70% favorable and #Falcon9 is healthy.

[tnt22]

 Falcon 9 Block 5 @Falcon9Block5 5 мин. назад

#SpaceX #GPSIIISV04 Countdown NET Update: T-2:45:00
Falcon 9 RF & Telemetry Checks. Weather is 70% favorable and #Falcon9 is healthy.

[tnt22]

 Falcon 9 Block 5 @Falcon9Block5 3 мин. назад

#SpaceX #GPSIIISV04 Countdown NET Update: T-2:30:00 Falcon 9 Launch Vehicle Release System Test. Weather is 70% favorable and #Falcon9 is healthy.

[tnt22]

10/03/2020 02:14 Stephen Clark

T-minus 2 hours, 30 minutes. SpaceX's launch team will soon complete checkouts of the rocket ahead of the start of fueling of the Falcon 9 with super-chilled, densified RP-1 kerosene and liquid oxygen propellants.

SpaceX's launch conductor will verify all members of the launch team are ready to proceed with the final 35-minute automated countdown sequence at 9:05 p.m. EDT (0105 GMT), followed by the start of filling the rocket with super-chilled, densified RP-1 kerosene and liquid oxygen propellants at 9:08 p.m. EDT (0108 GMT).

Liquid oxygen loading into the second stage will begin at T-minus 16 minutes, at 9:27 p.m. EDT (0127 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]

10/03/2020 02:23 Stephen Clark

... the Falcon 9 rocket on pad 40 as the countdown continues toward liftoff at 9:43:30 p.m. EDT (0143:30 GMT).

[tnt22]

 Falcon 9 Block 5 @Falcon9Block5 15 мин. назад

#SpaceX #GPSIIISV04 Countdown NET Update: T-2:25:00 TEA-TEB Bleed In. Weather is 70% favorable and #Falcon9 is healthy.

[tnt22]

 Falcon 9 Block 5 @Falcon9Block5 38 с

#SpaceX #GPSIIISV04 Countdown NET Update: T-1:45:00 RF Link & FTS Checks. Weather is 70% favorable and #Falcon9 is healthy.