AEHF -- 14.08.2010 -- Atlas V531 (AV-019)

Автор Liss, 14.05.2009 15:08:33

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Liss

Первый AEHF все еще на Земле, а второй уже проходит испытания на Lockheed Martin:

http://www.lockheedmartin.com/news/press_releases/2009/041409_ss_aehf.html

ЦитатаSUNNYVALE, Calif., April 14th, 2009 -- Lockheed Martin [NYSE] has successfully completed thermal vacuum testing of the second Advanced Extremely High Frequency (EHF) military communications satellite, a major program milestone that proves spacecraft performance and functionality in a complete test-like-you-fly environment...

Conducted between Jan. 26 and March 14 inside Lockheed Martin's Dual Entry Large Thermal Altitude (DELTA) chamber, the successful test verified Advanced EHF spacecraft functionality and performance in a vacuum environment where the satellite was stressed at the extreme hot and cold temperatures it will experience in space throughout its 14-year design life...
Сказанное выше выражает личную точку зрения автора, основанную на открытых источниках информации


anik

AEHF-1 летит не 15 сентября 2009 года, а в феврале 2011 года.

Liss

ЦитатаAEHF-1 летит не 15 сентября 2009 года, а в феврале 2011 года.
Ну чтобы по этой ссылке дойти до февраля 2011, надо еще постараться... Зря я Пьетробону поверил, однако :-(
Сказанное выше выражает личную точку зрения автора, основанную на открытых источниках информации

Agent

.... first Advanced Extremely High Frequency spacecraft into orbit on July 30 from the Complex 41 launch pad. The morning's window extends from 8:05 to 10:05 a.m. EDT (1205-1405 GMT).

http://www.spaceflightnow.com/atlas/av019/100610prep.html




Salo

http://www.spaceflightnow.com/tracking/index.html
ЦитатаAug. 10     Atlas 5  •  AEHF 1
Launch window: 1121-1322 GMT (7:21-9:22 a.m. EDT)
Launch site: SLC-41, Cape Canaveral Air Force Station, Florida

The United Launch Alliance Atlas 5 (AV-019) rocket will launch the first Advanced Extremely High Frequency (AEHF) satellite. Built by Lockheed Martin, this U.S. military spacecraft will provide highly-secure communications. The rocket will fly in the 531 vehicle configuration with a five-meter fairing, three solid rocket boosters and a single-engine Centaur upper stage. Delayed from July 2009 due to spacecraft readiness. Delayed from July 30 by payload fairing issue. [July 14]
"Были когда-то и мы рысаками!!!"

Salo

http://www.ulalaunch.com/site/pages/Launch.shtml
http://www.spaceflightnow.com/atlas/av019/100805move.html
ЦитатаAtlas 5 rocket to receive its satellite passenger today
BY JUSTIN RAY
SPACEFLIGHT NOW
Posted: August 5, 2010

An advanced satellite for relying secure U.S. military communications and the Atlas 5 rocket that will launch the craft into space next week are being brought together inside a Cape Canaveral assembly building today.

Already packed within the Swiss-made nose cone, the Air Force's first Advanced Extremely High Frequency satellite made a middle-of-the-night departure from its processing hangar in Titusville for a trailer-ride to the rocket's Vertical Integration Facility at Complex 41.

Cranes will hoist the AEHF 1 spacecraft into position atop the rocket for attachment to the Centaur upper stage later in the day.

   
File photo of a payload leaving Astrotech inside an Atlas 5 nose cone. Credit: NASA

The satellite had spent the past two months at the commercial Astrotech campus being checked out and fueled for flight. The final days of work there included encapsulating the 13,600-pound craft within the two-piece launch fairing and setting the payload aboard the transporter for its trip to join the Atlas 5 rocket.

In the early morning hours today, the satellite will be hauled across the river, up through the Kennedy Space Center and over to Complex 41 where the Atlas awaits on a mobile launching platform.

Once AEHF is installed, the fully stacked rocket will stand 197 feet tall. The United Launch Alliance vehicle features a Russian-designed main engine fed with refined kerosene and liquid oxygen, three strap-on solid propellant boosters, the liquid hydrogen-powered cryogenic Centaur and a composite payload shroud 16 feet in diameter.

"The Atlas 5-531 configuration with three solid rocket motors is one of the most powerful Atlas 5 vehicles we launch," said Bob Winn, ULA's AEHF 1 mission manager.

Liftoff had been targeted for August 12 at 7:14 a.m. EDT, but the launch could be sliding a day or two. Schedules became increasingly tight when the satellite's milestone move to the assembly building was delayed a few days, eating up the slack in the pre-flight timeline.

As of late Wednesday, the Air Force had not announced any official decisions on the launch rescheduling plans.

Between now and launch day, a combined test for the rocket and its payload will be conducted to verify systems are operating in sync for ascent.

Also upcoming is the review process to give the "go" for sending the Atlas 5 and satellite aloft. The Flight Readiness Review will assess the status of preparations and the subsequent Launch Readiness Review culminates in clearance for rolling the rocket out to the pad August 11 and beginning the countdown.

The daily launch window extends two hours each morning and shifts about four minutes earlier per day.

The Atlas flight sequence will last 51 minutes from liftoff until deployment of AEHF 1 from the booster. The craft will be delivered into a highly elliptical geosynchronous transfer orbit with a high point of 22,236 statute miles, a low point of 119 statute miles and inclination of 27 degrees.

   
The AEHF 1 satellite. Credit: Lockheed Martin

In the subsequent weeks and months, the satellite's own conventional and exotic ion propulsion systems will circularize the orbit to approximately 22,300 miles over the equator at 90 degrees West longitude for testing.

This maiden AEHF bird should be ready, if all goes well, to enter service early next year from an orbital location dictated by the needs at that time, officials said.

"AEHF will provide tactical and strategic support to a wide variety of Army, Navy, Marine and Air Force users," said Col. Michael Sarchet, commander of the Protected Satellite Communications Group at the Space and Missile Systems Center.

The U.S. military purchased a series of AEHF satellites for launches in the coming years to replace the aging Milstar communications spacecraft that link the national leadership and warfighters.

"AEHF is a very sophisticated satellite because it is built to provide the highest levels of protection for our nation's most critical users. Encryption, low probability of intercept and detection, jammer resistance and the ability to penetrate the electro-magnetic interference caused by nuclear weapons are essential features when communication can be of the highest priority," Sarchet said.
"Были когда-то и мы рысаками!!!"

Salo

http://www.spaceflightnow.com/tracking/index.html
ЦитатаAug. 12    Atlas 5  •  AEHF 1
Launch window: 1114-1313 GMT (7:14-9:13 a.m. EDT)
Launch site: SLC-41, Cape Canaveral Air Force Station, Florida

The United Launch Alliance Atlas 5 (AV-019) rocket will launch the first Advanced Extremely High Frequency (AEHF) satellite. Built by Lockheed Martin, this U.S. military spacecraft will provide highly-secure communications. The rocket will fly in the 531 vehicle configuration with a five-meter fairing, three solid rocket boosters and a single-engine Centaur upper stage. Delayed from July 2009 due to spacecraft readiness. Delayed from July 30 by payload fairing issue. Delayed from Aug. 10. See our Mission Status Center. [July 26]
"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

Salo

Теперь не ранее 14 августа:
http://msdb.gsfc.nasa.gov/launches.php
Цитата8/14/2010, 1107-1306Z   AEHF 1
"Были когда-то и мы рысаками!!!"

Salo

http://forum.nasaspaceflight.com/index.php?topic=21261.msg626510#msg626510
ЦитатаMy sources says it was moved from the 12th to the 14th and there are no other delays.
"Были когда-то и мы рысаками!!!"

интересующийся

http://www.lockheedmartin.com/news/press_releases/2010/0810_ss_aehf.html
ЦитатаLockheed Martin First Advanced EHF Satellite Encapsulated
Team Prepares Satellite in Atlas V Rocket Nose Cone for Launch
SUNNYVALE, Calif., August 10th, 2010 -- The first Advanced Extremely High Frequency (AEHF) military communications satellite was encapsulated into the fairing in preparation for a mid-August liftoff aboard an Atlas V rocket from Cape Canaveral Air Force Station, Fla.

Designed and built by Lockheed Martin Space Systems, Sunnyvale, Calif., the AEHF will deliver survivable, protected, secure links to U.S. national leaders, air, land and sea forces, providing rapid, global coverage for the nation's strategic forces, the Air Force's space warning assets and operationally deployed military forces. The AEHF constellation will also serve international partners including Canada, the Netherlands and the United Kingdom.

One AEHF satellite will provide greater total capacity than the entire Milstar constellation. Individual user data rates will be five times improved. The higher data rates will permit transmission of tactical military communication such as real-time video, battlefield maps and targeting data.

The AEHF team is led by the U.S. Air Force Military Satellite Communications Systems Wing at the Space and Missile Systems Center, Los Angeles Air Force Base, Calif. Lockheed Martin Space Systems Company, Sunnyvale, Calif., is the AEHF prime contractor and system manager, with Northrop Grumman Aerospace Systems, Redondo Beach, Calif., as the payload provider.
Бывает, что усердие превозмогает и рассудок

Salo

http://spaceflightnow.com/tracking/index.html
ЦитатаAug. 14     Atlas 5  •  AEHF 1
Launch window: 1107-1306 GMT (7:07-9:06 a.m. EDT)
Launch site: SLC-41, Cape Canaveral Air Force Station, Florida

The United Launch Alliance Atlas 5 (AV-019) rocket will launch the first Advanced Extremely High Frequency (AEHF) satellite. Built by Lockheed Martin, this U.S. military spacecraft will provide highly-secure communications. The rocket will fly in the 531 vehicle configuration with a five-meter fairing, three solid rocket boosters and a single-engine Centaur upper stage. Delayed from July 2009 due to spacecraft readiness. Delayed from July 30 by payload fairing issue. Delayed from Aug. 10 and Aug. 12. See our Mission Status Center. [Aug. 9]
"Были когда-то и мы рысаками!!!"

интересующийся

Цитатаhttp://spaceflightnow.com/tracking/index.html
ЦитатаAug. 14     Atlas 5  •  AEHF 1
Launch window: 1107-1306 GMT (7:07-9:06 a.m. EDT)
Launch site: SLC-41, Cape Canaveral Air Force Station, Florida

The United Launch Alliance Atlas 5 (AV-019) rocket will launch the first Advanced Extremely High Frequency (AEHF) satellite. Built by Lockheed Martin, this U.S. military spacecraft will provide highly-secure communications. The rocket will fly in the 531 vehicle configuration with a five-meter fairing, three solid rocket boosters and a single-engine Centaur upper stage. Delayed from July 2009 due to spacecraft readiness. Delayed from July 30 by payload fairing issue. Delayed from Aug. 10 and Aug. 12. See our Mission Status Center. [Aug. 9]
А вот подтверждение Локхида:
http://www.lockheedmartin.com/news/press_releases/2010/0812_ss_aehf.html
ЦитатаU.S. Air Force Ready to Launch First Advanced Extremely High Frequency Satellite Built by Lockheed Martin
CAPE CANAVERAL AIR FORCE STATION, Fla., August 12th, 2010 -- The U.S. Air Force's first Advanced Extremely High Frequency (AEHF) military communications satellite, designed and built by a Lockheed Martin [NYSE] team, is ready to launch aboard a United Launch Alliance Atlas V launch vehicle from Cape Canaveral Air Force Station, Fla., on Saturday, August 14. The launch window is 7:07 to 9:06 a.m. EDT.

The AEHF system will provide survivable, protected, assured, communications to the U.S. government, warfighters and international partners, including the United Kingdom, Canada and the Netherlands. Building upon the success of the current five-satellite Milstar constellation, AEHF will provide 10 times greater total capacity and offer channel data rates six times higher than that of Milstar II satellites. The higher data rates permit transmission of tactical military communications such as real-time video, battlefield maps and targeting data.

"AEHF represents a new era of global protected communications that will provide significantly improved, assured connectivity to a greater number of warfighters," said Mike Davis, Lockheed Martin's AEHF vice president. "The team has executed a smooth and efficient transition to the launch pad and we look forward to achieving mission success for our customer."

The AEHF team is led by the U.S. Air Force Military Satellite Communications Systems Wing at the Space and Missile Systems Center, Los Angeles Air Force Base, Calif. Lockheed Martin Space Systems Company, Sunnyvale, Calif., is the AEHF prime contractor and system manager, with Northrop Grumman Aerospace Systems, Redondo Beach, Calif., as the payload provider.
Бывает, что усердие превозмогает и рассудок

Salo

"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

Sharicoff

Кто возьмется расшифровать?

ЦитатаAntennas:
1. 2 SHF Downlink Phased Arrays,
2. 2 Crosslinks,
3. 2 Uplink/Downlink Nulling Antennas,
4. 1 Uplink EHF Phased Array,
5. 6 Uplink/Downlink Gimbaled Dish Antenna,
6. 1 Each Uplink/downlink earth coverage horns

1. 2 передающие фазированные антенные решетки SHF-диапазона
2. 2 антенны межспутниковой связи(?)
3. 2 приемо-передающие антенны... эээ... "без боковых лепестков"?
4. 1 приемная фазированная антенная решетка EHF-диапазона
5. 6 приемо-передающих параболических антенн в карданных подвесах
6. 1 ...(?) приемо-передающая рупорная (?) антенна с глобальным покрытием
Не пей метанол!

Sharicoff

Надо полагать - так:

Не пей метанол!

Sharicoff

Не пей метанол!