Paz - Falcon 9 - Vandenberg SLC-4E - 22.02.2018 11:25 UTC

[tnt22]

Новый NOTMAR

NAVAREA XII 80/2018 (16,18,19)

NORTH PACIFIC.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   211350Z TO 211501Z FEB, ALTERNATE 1350Z TO 1501Z
   DAILY 22 AND 23 FEB IN AREA BOUND BY
   31-50N 121-31W, 31-50N 120-57W,
   30-06N 120-50W, 30-06N 122-08W.
2. HAZARDOUS OPERATIONS, SPACE DEBRIS
   211718Z TO 211751Z FEB, ALTERNATE 1718Z TO 1751Z
   DAILY 22 AND 23 FEB IN AREA BOUND BY
   50-17N 168-05W, 50-17N 161-46W,
   41-47N 165-43W, 33-14N 168-50W,
   33-14N 173-39W, 42-50N 170-58W.
3. CANCEL NAVAREA XII 75/18.
4. CANCEL THIS MSG 231851Z FEB 18.

( 172028Z FEB 2018 )

Координаты опасных зон - без изменений.

[us2-star]

Русскоязычные трансляции:
https://www.youtube.com/watch?v=x8GpiBs0Irs&feature=youtu.be
https://www.youtube.com/watch?v=x8GpiBs0Irs&feature=youtu.be

[che wi]

SpaceX развернула гигантскую паутину

SpaceX попробует поймать половину головного обтекателя ракеты Falcon 9 при помощи гигантской сетки. Ее снимок выложила в Twitter фотожурналист Teslarati Паулин Акалин.

Фотографу удалось запечатлеть гигантскую сетку, развернутую на корабле Mr. Steven в порту Сан-Педро в Лос-Анджелесе (США). Конструкция предназначена для смягчения падение элемента Falcon 9 после запуска испанского спутника PAZ, запланированного на 21 февраля.

На высоте примерно ста километров скорость однотонной половины головного обтекателя примерно в десять раз будет превышать скорость звука. На высоте примерно десяти километров, в случае удачной ориентации элемента ракеты в пространстве, она должна составить половину от скорости звука. На этом участке траектории на головном обтекателе ожидается развертывание парашюта и включение системы GPS, которая позволит Mr. Steven отследить район падения элемента ракеты.

Стоимость головного обтекателя Falcon 9, состоящего из двух половин, оценивается в шесть миллионов долларов. Спасение половины обтекателя позволит SpaceX снизить стоимость пуска тяжелой ракеты, оцениваемого в 62 миллиона долларов, примерно на пять процентов.

[che wi]

Derrick.Stamos‏ @Helodriver2004 · 1h

Bright light under the darkening of night. 12 hours to launch. #SpaceX #PAZ @NASASpaceflight

[Hrono]

V.B. пишет:
Будет Broadband со скоростью до 1440 Mbps. У меня щас 100

 Один канал.

[tnt22]

https://spaceflightnow.com/2018/02/20/test-satellites-for-spacexs-broadband-megaconstellation-set-for-launch/

Test satellites for SpaceX's broadband 'megaconstellation' set for launch
February 20, 2018 Stephen Clark


SpaceX plans to launch the first two satellites of a potential fleet of nearly 12,000 spacecraft Wednesday. Credit: NASA

SpaceX is set to launch two prototype probes Wednesday to begin testing spacecraft and antenna technology the company hopes will eventually power a network of thousands of satellites blanketing planet Earth with broadband Internet coverage.

The launch marks a turning point for SpaceX's broadband initiative, a project described by company founder Elon Musk in 2015 as a revenue source for the company's broad ambitions to explore the solar system.

But SpaceX has said little publicly about the broadband network, dubbed Starlink, other than trickles of information disclosed in regulatory filings.

The two test satellites, named Microsat-2a and Microsat-2b and developed by SpaceX engineers, will ride into orbit on a Falcon 9 rocket set for liftoff fr om Vandenberg Air Force Base in California at 6:17 a.m. PST (9:17 a.m. EST; 1417 GMT) Wednesday.

Спойлер

The kerosene-fueled Falcon 9 rocket, also built and operated by SpaceX, will loft a Spanish radar observation satellite named Paz into a polar, sun-synchronous orbit approximately 317 miles (511 kilometers) above Earth.

Paz — named for the Spanish word for peace — is the primary passenger on Wednesday's rocket launch fr om California's Central Coast.

SpaceX intended to launch the Falcon 9 rocket with Paz and the two broadband test satellites Saturday, but officials pushed back the mission to Sunday to complete final systems checks. Managers delayed the flight to Wednesday to accomplish final checkouts of an upgraded payload fairing launching on the Falcon 9 rocket.

Regulatory filings submitted by SpaceX to the Federal Communications Commission suggest the company's Microsat-2a and Microsat-2b testbed craft will accompany Paz on the launch.

A press kit released for Wednesday's mission does not mention the broadband Microsats, and a SpaceX spokesperson declined to comment on the satellites.

But a letter sent to the FCC by Patricia Cooper, SpaceX's vice president of satellite government affairs, says the two experimental communications satellites, each weighing around 880 pounds (400 kilograms), will be deployed by the same Falcon 9 rocket due to launch Paz.

The rocket will release Paz and the two Microsats into the same 317-mile-high orbit. The placement is designed to satisfy requirements for the Paz satellite, which is set to kick off a $200 million (160 million euro) mission to gather worldwide radar imagery for the Spanish military and other governments, plus commercial clients.

The two Microsats will boost themselves into a higher orbit roughly 700 miles (1,125 kilometers) in altitude once ground controllers finish an initial post-launch checkout of the spacecraft, Cooper wrote in a letter to the FCC dated Feb. 1.

In a previous FCC filing, SpaceX said Microsat-2a and Microsat-2b are designed for 20-month missions.

Each satellite measures about the size of a mini-refrigerator and carries computer, power, command and control, propulsion and GPS navigation equipment typical for small spacecraft. A Ku-band broadband phased array antenna and an inter-satellite optical communications link is also included on each spacecraft, according to SpaceX.

"These are experimental engineering verification vehicles that will enable the company to assess the satellite bus and related subsystems, as well as the space-based and ground-based phased array technologies," SpaceX officials wrote in a submission to the FCC.

SpaceX plans to test the satellites' compatibility with six broadband ground receiving stations in California, Texas and Washington. Engineers also want to validate broadband connections between the satellites and mobile terminals.

In an application last year seeking FCC approval of the broadband fleet, SpaceX outlined a network that could include 4,425 satellites broadcasting Internet signals in Ku-band and Ka-band frequencies, a network originally proposed to the commission in 2016.

The Ku-band and Ka-band satellites would orbit between 689 miles and 823 miles (1,110 kilometers to 1,325 kilometers) above Earth.

SpaceX revealed plans for an expanded network in a regulatory filing last year. Besides the huge constellation of Ku-band and Ka-band satellites, SpaceX also proposed deploying 7,518 spacecraft transmitting broadband signals in V-band frequencies from low-altitude orbits around 210 miles (340 kilometers) above the planet.

The Ku-, Ka- and V-band combination "would provide both diverse geographic coverage and the capacity to support a wide range of broadband and communications services for residential, commercial, institutional, governmental and professional users in the United States and globally," SpaceX said in a proposal submitted to the FCC for approval.

FCC Chairman Ajit Pai last week said he supported SpaceX's plan.

"To bridge America's digital divide, we'll have to use innovative technologies," Pai said in a statement Feb. 14. "SpaceX's application — along with those of other satellite companies seeking licenses or access to the U.S. market for non-geostationary satellite orbit systems — involves one such innovation. Satellite technology can help reach Americans who live in rural or hard-to-serve places wh ere fiber optic cables and cell towers do not reach. And it can offer more competition wh ere terrestrial Internet access is already available."

SpaceX's chief competitor in the broadband market is OneWeb, founded by satellite industry entrepreneur Greg Wyler and backed by Airbus, Virgin, Qualcomm, New Delhi-based Bharti Enterprises, Hughes Network Systems — a subsidiary of EchoStar Corp. — Coca-Cola and Totalplay, a company owned by Mexican billionaire Ricardo Salinas Pliego.

OneWeb aims to build nearly 900 satellites in a factory located near NASA's Kennedy Space Center in Florida, and the first set of test craft will launch later this year on a Russian-made Soyuz rocket from French Guiana.

SpaceX's broadband constellation will be developed at the company's facility Redmond, Washington.

The FCC has already approved OneWeb's proposal to offer Internet-via-satellite services in the U.S. market, along with a more modest 117-satellite low Earth orbit communications network being designed by Canada-based Telesat. The regulatory body has also granted a request from Space Norway to operate two low-altitude telecom satellites to improve coverage over the Arctic.

Backers of the low-altitude "megaconstellations" say they will offer higher-speed, lower-latency broadband service than possible from bigger, conventional communications satellites positioned in geostationary orbit more than 22,000 miles (nearly 36,000 kilometers) over the equator.

"Following careful review of this application by our International Bureau's excellent satellite engineering experts, I have asked my colleagues to join me in supporting this application and moving to unleash the power of satellite constellations to provide high-speed Internet to rural Americans," Pai said of SpaceX's proposal. "If adopted, it would be the first approval given to an American-based company to provide broadband services using a new generation of low-Earth orbit satellite technologies."

[свернуть]

[tnt22]

Chris B - NSF‏ @NASASpaceflight 1h ago

East Coast Falcon 9 fires up at the end of the test window. ...

Falcon 9 static fires at SLC-40 ahead of Hispasat 30W-6 mission - by Ian Atkinson: https://www.nasaspaceflight.com/2018/02/falcon-9-static-fire-slc-40-hispasat-30w-6/ ...

[tnt22]

02/21/2018 09:54 Stephen Clark

Weather forecasters at Vandenberg Air Force Base predict a better than 90 percent probability of favorable conditions for liftoff of a SpaceX Falcon 9 rocket Wednesday.

A low pressure system will bring mid- and high-level clouds over California's Central Coast on Wednesday, but limited moisture in the atmosphere keep the clouds' impacts on the launch in check.

Partly cloudy conditions are forecast for launch time, with a north-northeast wind of 8 to 12 knots, a temperature between 34 and 39 degrees Fahrenheit, and good visibility. Relatively light winds aloft are also in the forecast.

The only slight concern that meteorologists will watch during Wednesday's countdown is with ground winds.

[KBOB]

che wi пишет:
SpaceX развернула гигантскую паутину

SpaceX попробует поймать половину головного обтекателя ракеты Falcon 9 при помощи гигантской сетки. Ее снимок выложила в Twitter фотожурналист Teslarati Паулин Акалин.

Фотографу удалось запечатлеть гигантскую сетку, развернутую на корабле Mr. Steven в порту Сан-Педро в Лос-Анджелесе (США). Конструкция предназначена для смягчения падение элемента Falcon 9 после запуска испанского спутника PAZ, запланированного на 21 февраля.

На высоте примерно ста километров скорость однотонной половины головного обтекателя примерно в десять раз будет превышать скорость звука. На высоте примерно десяти километров, в случае удачной ориентации элемента ракеты в пространстве, она должна составить половину от скорости звука. На этом участке траектории на головном обтекателе ожидается развертывание парашюта и включение системы GPS, которая позволит Mr. Steven отследить район падения элемента ракеты.

Стоимость головного обтекателя Falcon 9, состоящего из двух половин, оценивается в шесть миллионов долларов. Спасение половины обтекателя позволит SpaceX снизить стоимость пуска тяжелой ракеты, оцениваемого в 62 миллиона долларов, примерно на пять процентов.

Левая палочка Twix половина головного обтекателя чем-то отличается от правой?
Решили спасти одну только в ходе эксперимента? Интересно как она затормозит с 10М до 0.5М без аэро-томозов и ракетных двигателей?

[tnt22]

Deimos Imaging‏ @deimosimaging 2h ago

#DEIMOS2 captured #Falcon9 and #PAZ vertical on SLC-4E at Vandenberg Air Force Base yesterday! Best of luck for today's launch to #Hisdesat and @AirbusSpace

[Димитър]

KBOB пишет: 
Интересно как она затормозит с 10М до 0.5М без аэро-томозов и ракетных двигатеелей

Об атмосфере, конечно.  

[Димитър]

SpaceX plans to launch the first two satellites of a potential fleet of nearly 12,000 spacecraft.

Говорили про 4000 спутников. Когда их стало 12 000 !? 

[tnt22]

02/21/2018 15:18 Stephen Clark

T-minus 2 hours and counting. SpaceX's launch team at Vandenberg is stepping through procedures ahead of the start of fueling of the Falcon 9 rocket at this time.

SpaceX's launch director is expected to give the go to begin loading RP-1 kerosene into the Falcon 9 rocket at 5:04 a.m. PST (8:04 a.m. EST; 1304 GMT), followed by the start of fueling three minutes later.

Liquid oxygen will begin flowing into the rocket at 5:42 a.m. PST (8:42 a.m. EST; 1342 GMT).

[tnt22]

Димитър пишет:
Говорили про 4000 спутников. Когда их стало 12 000 !?

См #126 или прямо в статье https://spaceflightnow.com/2018/02/20/test-satellites-for-spacexs-broadband-megaconstellation-set-for-launch/

... In an application last year seeking FCC approval of the broadband fleet, SpaceX outlined a network that could include 4,425 satellites broadcasting Internet signals in Ku-band and Ka-band frequencies, a network originally proposed to the commission in 2016. 

The Ku-band and Ka-band satellites would orbit between 689 miles and 823 miles (1,110 kilometers to 1,325 kilometers) above Earth. 

SpaceX revealed plans for an expanded network in a regulatory filing last year. Besides the huge constellation of Ku-band and Ka-band satellites, SpaceX also proposed deploying 7,518 spacecraft transmitting broadband signals in V-band frequencies from low-altitude orbits around 210 miles (340 kilometers) above the planet. ...

Итого 11943 КА:
- 4425 спутников в Ku- и Ka-диапазонах (планы 2016 года)
- 7518 спутников в V-диапазоне (планы 2017 года)

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 7m ago

Riding shotgun on today's #Falcon9 mission are MicroSat-2a & 2b - the first demo sats for SpaceX's planned Starlink satellite constellation combining Ku/Ka/V-Band frequencies for global Internet distribution via more than 11,000 low-orbiting satellites: http://bit.ly/2EUHZ2E 

http://bit.ly/2EUHZ2E --> MicroSat-2a & 2B

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 2m ago

Today's launch marks the 4th #SpaceX mission in 2018, the 3rd with #Falcon9 & the first from Vandenberg. #Falcon9 is re-using Booster 1038 from last year's FormoSat mission and today's mission debuts Payload Fairing 2.0. Sooty 1038.2 has fins but no legs and will not be recovered

[tnt22]

Chris G - NSF‏ @ChrisG_NSF 4m ago

Currently, the count is proceeding nominally and there are no issues. Fueling is scheduled to begin at 05:07 PST (08:07 EST; 13:07 UTC). #SpaceX #Falcon9 #Paz #Starlink

[tnt22]

[tnt22]

https://spaceflightnow.com/2018/02/21/photos-falcon-9-on-the-eve-of-launch-from-vandenberg/

Photos: Falcon 9 on the eve of launch from Vandenberg
February 21, 2018 Stephen Clark

SpaceX crews at Vandenberg Air Force Base in California rolled out a Falcon 9 rocket and lifted it vertical atop its launch pad ahead of a planned blastoff Wednesday with a Spanish radar observation satellite and two test probes for a planned global broadband Internet network.

Спойлер

These photos captured Tuesday at Vandenberg show the 229-foot-tall (70-meter) rocket at Space Launch Complex 4-East, SpaceX's launch pad at the West Coast spaceport formerly used for Titan 4 rocket flights.

The first stage booster slated to launch Spain's Paz Earth observation mission and SpaceX's Microsat-2a and Microsat-2b payloads previously flew in August 2017 with the Taiwanese Formosat 5 satellite. It was recovered aboard SpaceX's drone ship in the Pacific Ocean.

SpaceX has no plans to recover the first stage intact on Wednesday launch.


Credit: SpaceX


Credit: SpaceX


Credit: Gene Blevins/LA Daily News


Credit: Gene Blevins/LA Daily News


Credit: Gene Blevins/LA Daily News


Credit: Gene Blevins/LA Daily News

[свернуть]

[tnt22]

02/21/2018 16:04 Stephen Clark

While no first stage landing is planned, SpaceX may attempt to recover part of the Falcon 9 rocket's payload fairing following today's launch.

The company's fairing recovery ship, named Mr. Steven, is heading toward the Falcon 9's flight track downrange fr om Vandenberg Air Force Base.

SpaceX says today's mission will fly with an "upgraded" fairing, which separates in two clamshell-like halves around three minutes after liftoff. The fairing structure is fitted with thrusters for maneuvering and a parachute to slow its descent back to the ground, wh ere a ship with a huge net may try to catch the falling shroud.

Here's a photo of the fairing recovery vessel before it departed the Port of Los Angeles in advance of today's flight. Credit: Gene Blevins/LA Daily News.