SES-12 - Falcon 9 - CCAFS SLC-40 - 04.06.2018 04:45 UTC

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45-е КК опубликовало

Airspace Closure Area

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Обновлена (на 2018-06-01)

Launch Hazard Area

[Pirat5]

ранее говорилось про техобслуживание на полигоне с 29 числа. теперь перенесли, вероятно, на 2 июня

L-1 Weather Report : 40% GO на 1 июня и 60% GO на дату резервного копирования.

Поскольку Range закрывается для обслуживания на 2-м, запуск будет отложен до 10-го, если есть скраб.
 
Лучше всего предположить, что расширенное окно, мы надеемся, поможет уклониться от плохой погоды.

-reddit-

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05/31/2018 07:51 Stephen Clark

SpaceX is gearing up for the launch of a Falcon 9 rocket with a previously-flown first stage booster carrying the SES 12 communications satellite, an all-electric, multi-band video and data relay platform to serve the Asia-Pacific region.

Liftoff from Cape Canaveral is set for 12:29 a.m. EDT (0429 GMT) Friday. The duration of the launch window is expected to be four hours, an extension of the window previously announced.

Weather conditions are expected to be iffy, but anvil and debris clouds from dissipating evening thunderstorms are expected to become less of a threat later in the launch window.

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The official outlook issued by the Air Force's 45th Weather Squadron Wednesday suggests a 60 percent probability conditions will violate a launch weather rule during Thursday's early morning window.

"The coverage and duration of the storms will gradually diminish over the next few days as a deep upper-level trough weakens and begins to move east," the Air Force weather team wrote in Wednesday's forecast. "Expect inland storms to migrate towards the Space Coast as steering flow will remain from the south-southwest. Anvil and debris clouds from earlier convection should dissipate through the launch window.

"The primary weather concern is lingering clouds from the storms. Maximum upper-level winds will be from the southwest at 40 knots near 38,000 feet."

The official forecast predicts a few clouds at 2,500 feet, scattered clouds at 12,000 feet, and broken clouds at 22,000 feet, with surface winds from the south at 10 to 15 mph, and a temperature of 76 degrees Fahrenheit.

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:!:   :!:   :!:  

SpaceX‏Подлинная учетная запись @SpaceX 4 мин. назад

Standing down from Friday's launch attempt to run additional tests on Falcon 9's second stage. Rocket and payload are in good health. Currently working toward a June 4 launch of SES-12 from Pad 40 in Florida.

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Да и прогноз погоды на 2018-06-04 выглядит гораздо более предпочтительным нежели на 31 мая и 1 июня

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Emre Kelly‏Подлинная учетная запись @EmreKelly 1 ч. назад

SES CTO Martin Halliwell: Looking at a 4-hour launch window Monday for #SES12. Will stop the countdown at around T-minus 70 minutes, then look for a slot. Will "thread the needle," he says. Satellite is still in hangar. #Falcon9

1 ч. назад

Halliwell: #SES12 is "the most powerful spacecraft we've ever had built for us." "It's really, really big." Almost full electrical propulsion, but there is some chemical.

1 ч. назад

Halliwell: Stripped everything off #Falcon9, including landing legs, because it's an expendable mission. "Going straight for the ocean," he says while the #OCISLY drone ship is in the background. (Event being held at Port Canaveral, where OCISLY is stationed.)

47 мин. назад

Halliwell: Ideally, SpaceX will have a long enough launch window to fuel #Falcon9 twice for #SES12, if necessary. Still targeting just after midnight Monday.

32 мин. назад

"It's a bold claim," SES CTO Martin Halliwell says on SpaceX's plans to fly #Block5 #Falcon9 twice within 24 hours. "I wouldn't bet against it."

"Never say never with Elon," he says.
#SES12

3 мин. назад

SES CTO Halliwell: "Monster engine" in #Falcon9 upper stage will fire 3 to 5 seconds longer to get #SES12 even higher. "Completely changes the dynamics of the project," he says. Those few seconds of burn time could get the satellite up to 7 more years of operational life.

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Прогноз погоды L-3 на 4 июня

F9 L-3 Day Forecast 4 June Launch

70% GO

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TomCross‏ @_TomCross_ 4 ч. назад

They've stripped the landing legs and recovery hardware from the first stage because there won't be a landing. The first stage booster is Block 4 and the upper stage is Block 5 "There's a ton of performance on this rocket" said SES. @Teslarati #ses12 #spacex

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https://www.teslarati.com/spacex-hybrid-falcon-9-block-4-5-ses-12-launch/

SpaceX to fly 'hybrid' Falcon 9 with Block 4 and 5 stages on June 4 launch

By Eric Ralph
Posted on May 31, 2018

According to SES chief technical officer Martin Halliwell, SpaceX intends to "thread the needle" with a unique hybrid Falcon 9 launch of his company's SES-12 communications satellite on June 4th.

In the case of this launch, Halliwell's "needle" refers to unsavory weather conditions present at Florida's Cape Canaveral launch facilities, although weather appears to be improving significantly over the next few days. Originally scheduled for launch on May 24, SES-12 was pushed to May 31, June 1st, and finally June 4th, according to a tweet from SpaceX earlier this morning. Minor difficulties with hardware in the Falcon 9's Block 5 upper stage required additional troubleshooting and were ultimately magnified by the fact that Cape Canaveral Air Force Station's range is technically supposed to be closed for launches at the moment, a shutdown of two or so weeks meant to allow the station's range to conduct routine maintenance and install upgraded hardware (radar, meteorology, helicopter maintenance, avionics, software, etc).

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As such, it's unlikely that the minor upper stage hardware issues referenced by SpaceX literally entailed a 72 hour delay. In fact, it's fairly unique for the Eastern Range to go so out of their way to accommodate launches well within a closure period – May 28 to June 9 – scheduled months in advance. Once SpaceX's SES-12 mission is completed, the range will likely try to complete necessary maintenance ops.


Falcon 9 B1040 returns to Landing Zone-1 after launching the X-37B spaceplane. It's second and final flight will be with the SES-12 communications satellite. (SpaceX)

In a press conference hosted by the satellite operator SES, CTO Martin Halliwell further discussed some of the more technical aspects of the imminent SpaceX launch, waxing poetic about the particular flight-proven rocket's fusion of a Block 4 Falcon 9 first stage and a Block 5 upper stage. With its "monster" Block 5 Merlin Vacuum engine, Halliwell noted that the extra performance provided by the upgraded second stage's higher thrust, the expendable first stage launch profile, and the removal of its grid fins and landing legs could enable as much as seven years of additional operational life for the massive communications satellite.

Although the CTO did not explicitly confirm it, his comments indicate that this launch of the Block 5 upper stage – likely the second after Falcon 9 Block 5's May 11 debut – may operate at 5% higher thrust for the first time, something briefly discussed by SpaceX CEO Elon Musk in a press call before the Block 5 debut. In that call, the CEO stated that the upgraded vacuum version of Merlin would fly with its thrust downrated by 5% to avoid risking a customer's payload while ensuring that the hardware and software upgrades were functioning as intended. It appears that the data and experience provided by the Bangabandhu-1 mission's downrated thrust profile was extremely encouraging, leading SpaceX to open the throttle a bit more with the SES-12 mission, so to speak.


Falcon 9 1046's Block 5 upper stage shown on its May 11 debut launch with Bangabandhu-1. (SpaceX)


Falcon 9 Block 5 completed its first launch on May 11, carrying the Bangabandhu-1 communications satellite to geostationary transfer orbit. (Tom Cross)

Falcon 9 B1042, the reused booster tasked with launching the second stage and satellite above Earth's atmosphere, previously flew on September 7, 2017, launching the USAF's secretive X-37B spaceplane into low Earth orbit. Teslarati photographer Tom Cross will capture the booster's last hurrah around 12:30am on June 4th.

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Chris B - NSF‏ @NASASpaceflight 6 мин. назад

A reminder that the since-delayed launch attempt tonight for Falcon 9 with SES-12 wasn't looking great on the weather front.

Greg Pallone‏Подлинная учетная запись @gpallone13 25 мин. назад

DARK CLOUDS: daunting storm clouds hover over south #Brevard @MyNews13 @MyNews13Weather

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Raul‏ @Raul74Cz 1 ч. назад

Go Pursuit has reached operating positions of approximately 907 km and is ready for waterlanding of payload fairing in the upcoming mission. The current position of the ship is marked green in the map. https://goo.gl/JYk1ey 

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https://spaceflightnow.com/2018/05/31/spacex-delays-launch-to-run-additional-tests-on-rocket/

SpaceX delays launch to run additional tests on rocket
May 31, 2018 | Stephen Clark


File photo of a previous Falcon 9 rocket at Cape Canaveral's Complex 40 launch pad. Credit: SpaceX

SpaceX has delayed the launch of the SES 12 commercial communications satellite fr om Cape Canaveral until Monday to conduct additional tests on the Falcon 9 rocket's second stage, officials said Thursday.

The liftoff from Cape Canaveral's Complex 40 launch pad is now scheduled for Monday at 12:29 a.m. EDT (0429 GMT), the opening of a four-hour launch window.

SpaceX announced the three-day delay in a tweet Thursday.

The launch will mark SpaceX's 11th mission of the year, and the 56th launch of a Falcon 9 rocket since the workhorse commercial booster debuted in June 2010.

Спойлер

SpaceX test-fired the reused first stage of the Falcon 9 rocket for the SES 12 mission May 24 at Cape Canaveral, and teams have encapsulated the commercial telecom payload and attached it to the launcher since the static fire test last week.

The Falcon 9 first stage slated to launch with SES 12 was previously used to send the U.S. Air Force's X-37B spaceplane toward orbit from the Kennedy Space Center in September 2017. The upcoming mission will mark the 13th time SpaceX has re-launched a previously-flown booster.

SpaceX does not plan to recover the first stage on next week's mission because the booster was built using an earlier design of the Falcon 9 rocket, known as the "Block 4." The second stage flying on the SES 12 mission is based on the upgraded "Block 5" version of the Falcon 9.

Built by Airbus Defense and Space, the SES 12 communications satellite will connect the Middle East, the Asia-Pacific, and Australia with Ku-band beams, providing video and data relay, television broadcast, and government services. In addition to the six Ku-band payload, SES 12 carries 72 high-throughput beams tailored for broadband connectivity, plus an on-board digital processor to adjust bandwidth to meet changing customer demand.

The Falcon 9 rocket will place the 11,867-pound (5,383-kilogram) spacecraft in an elliptical "supersynchronous" transfer orbit ranging between 182 miles (294 kilometers) at the lowest point to more than 36,000 miles (about 58,500 kilometers) at its highest point.

Plasma thrusters aboard the SES 12 satellite will reshape its orbit to a circular perch over the equator, and maneuver the relay station to a geostationary slot at 95 degrees east longitude, wh ere will join the SES 8 spacecraft and replace the aging NSS 6 satellite.

Forecasters from the U.S. Air Force's 45th Weather Squadron predict a 70 percent probability of favorable weather during Monday's early morning launch window.

"Afternoon and evening storms are expected to continue over Central Florida for the next several days, though coverage and duration will lesson daily moving into the weekend," forecasters wrote in an outlook issued Thursday. "On Sunday, a weak surface boundary begins to move into the Southeast U.S., increasing the pressure gradient over the Space Coast. Winds will become gusty out of the west-southwest as the front approaches northern Florida during the launch window. The primary weather concern for the launch window on 4 June is liftoff winds."

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Общий прогноз погоды на 1 - 7 июня

Weekly Planning Forecast 01 June

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Обновлена ACA (на 2018-06-04)

Airspace Closure Area

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45-е КК обновило LHA (на 2018-06-04)

Launch Hazard Area

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Прогноз погоды L-2 на 2018-06-04

F9 L-2 Day Forecast 4 June Launch

70% GO

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Прогноз погоды L-1 на 2018-06-04 

F9 L-1 Day Forecast 4 June Launch

70% GO

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Обновлено сообщение мореплавателям

NOTMAR

NAVAREA IV 440/2018 (11,26)

WESTERN NORTH ATLANTIC.
FLORIDA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   040424Z TO 040921Z JUN, ALTERNATE
   050424Z TO 050921Z JUN IN AREAS BOUND BY:
   A. 28-37N 080-38W, 28-38N 080-15W,
   28-36N 079-54W, 28-32N 079-54W,
   28-30N 080-18W, 28-30N 080-22W,
   28-31N 080-37W.
   B. 28-41N 074-28W, 29-01N 071-01W,
   28-59N 070-21W, 28-18N 070-20W,
   28-11N 071-11W, 28-31N 074-28W.
2. CANCEL NAVAREA IV 436/18.
3. CANCEL THIS MSG 051021Z JUN 18.

( 311446Z MAY 2018 )

Опасные зоны - без изменений.

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SpaceX опубликовала брошюру миссии

ses-12missionpress_kit_6.2.18.pdf - 284.5 KB, 2 стр, 2018-06-03 05:34:30 UTC