Author Topic: Atlas V 551 - AFSPC-11 - April 14, 2018  (Read 26181 times)

Offline FutureSpaceTourist

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Offline Rocket Science

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #121 on: 04/15/2018 01:42 PM »
Congrats to all the teams, well done! Pretty sporty leaving the pad! 8) Thank you for the great coverage team NSF and the photos of the warm Florida beaches are especially welcome :) since I'm in the middle of an ice-storm right now... :o
"The laws of physics are unforgiving"
~Rob: Physics instructor, Aviator, Vintage auto racer

Offline ZachS09

Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #122 on: 04/15/2018 03:33 PM »
Congrats to ULA and the U.S. Air Force on succeeding in another Atlas V launch.
Because the Falcon Heavy Test Flight was successful, it has inspired thousands of people to consider changing the future of space travel.

Online catdlr

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #123 on: 04/15/2018 05:06 PM »
AFSPC-11 launches on a ULA Atlas Rocket - UP CLOSE VIEWS

AmericaSpace
Published on Apr 15, 2018

https://www.youtube.com/watch?v=QB_IAiLBBLE?t=001

Tony De La Rosa

Online catdlr

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #124 on: 04/15/2018 05:07 PM »
AtlasV - AFSPC11 - Tracking Camera Test 04-11-2018

USLaunchReport
Published on Apr 15, 2018

Using different cameras to test and align tracker.

https://www.youtube.com/watch?v=8UO8YgvsvEE?t=001

Tony De La Rosa

Offline gwiz

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #125 on: 04/15/2018 05:19 PM »
Four objects catalogued, payloads named USA 283 and USA 284, the Centaur and a piece of Centaur debris.  No orbital data, presumably classified, we'll have to wait for the hobbyists to do their stuff.

Offline FutureSpaceTourist

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #126 on: 04/15/2018 05:31 PM »
Quote
Underexposed, controlled rage🚀
#AtlasV-551 soaring from Cape Canaveral Air Force Station SLC-41 with #AFSPC11 at sunset🌅

📸full gallery: photos.tmahlmann.com/Rockets/United…
⭐️patreon.com/posts/18192290

https://twitter.com/trevormahlmann/status/985565303110324224

Offline Newton_V

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #127 on: 04/15/2018 05:46 PM »
Four objects catalogued, payloads named USA 283 and USA 284, the Centaur and a piece of Centaur debris.  No orbital data, presumably classified, we'll have to wait for the hobbyists to do their stuff.
It's not Centaur debris.

Offline Star One

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #128 on: 04/16/2018 06:29 AM »
Four objects catalogued, payloads named USA 283 and USA 284, the Centaur and a piece of Centaur debris.  No orbital data, presumably classified, we'll have to wait for the hobbyists to do their stuff.
It's not Centaur debris.

MYCROFT?

Offline input~2

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #129 on: 04/16/2018 01:15 PM »
Four objects catalogued, payloads named USA 283 and USA 284, the Centaur and a piece of Centaur debris.  No orbital data, presumably classified, we'll have to wait for the hobbyists to do their stuff.
It's not Centaur debris.

Well, the catalog for this object (2018-036D/43342) says "ATLAS CENTAUR DEB"

Offline jacqmans

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Offline jcm

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #131 on: 04/16/2018 05:23 PM »
Four objects catalogued, payloads named USA 283 and USA 284, the Centaur and a piece of Centaur debris.  No orbital data, presumably classified, we'll have to wait for the hobbyists to do their stuff.
It's not Centaur debris.


Is that from knowledge, or just guess? It's not clear to me that Mycroft necessarily separates from EAGLE right away. We could end up with debris plus a later object E as Mycroft.

But perhaps you have inside knowledge of a successful Mycroft deploy.
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline Skyrocket

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #132 on: 04/16/2018 05:40 PM »
Four objects catalogued, payloads named USA 283 and USA 284, the Centaur and a piece of Centaur debris.  No orbital data, presumably classified, we'll have to wait for the hobbyists to do their stuff.
It's not Centaur debris.


Is that from knowledge, or just guess? It's not clear to me that Mycroft necessarily separates from EAGLE right away. We could end up with debris plus a later object E as Mycroft.

But perhaps you have inside knowledge of a successful Mycroft deploy.

If i got the webcast right, Mycroft is for early orbit self inspection - so it would make sense to deploy it early in the mission.

Offline jacqmans

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #133 on: 04/17/2018 07:10 AM »
Orbital ATK-Designed Satellites Demonstrate Affordable Access to Space for U.S. Air Force

Company’s ESPAStar and ESPASat Platforms Deliver Advanced Capabilities for Multiple Payload Missions

Dulles, Virginia 15 April 2018 – Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, designed the EAGLE (ESPA Augmented Geostationary Laboratory Experiment) experimental satellite for the U.S. Air Force’s AFSPC-11 mission that successfully launched  on United Launch Alliance’s Atlas V vehicle April 14 from Cape Canaveral Air Force Station, Florida. The AFSCPC-11 mission included a second company designed satellite, Mycroft, which is among several Department of Defense experiments hosted on the EAGLE platform as separate payloads.

The EAGLE and Mycroft satellites are based on the company’s ESPAStar™ and ESPASat™ products, which provide modular, cost-effective and highly capable infrastructure resources for hosting technology development and operational payloads. The Orbital ATK-designed EAGLE satellite is the first spacecraft based on the company’s innovative ESPAStar platform. The ESPAStar vehicle can accommodate any combination of up to six hosted or 12 separable, free-flyer payloads in low and geosynchronous orbit and is built to provide an even greater level of access to space. Orbital ATK designed and delivered the EAGLE satellite under a contract with the U.S. Air Force Research Laboratory (AFRL) Space Vehicles Directorate.

After a successful separation from the launch vehicle, EAGLE is hosting several Department of Defense payloads, including Mycroft, the second Orbital ATK-designed satellite to be deployed on the mission. Mycroft, a separable, fly-away experiment, utilized the company’s ESPASat platform for its flight. ESPASat is designed as an affordable GEO bus that can be launched as a secondary payload from an ESPAStar platform.

“Orbital ATK is proud to partner with the U.S. Air Force on the EAGLE and Mycroft missions,” said Chris Long, Vice President, National Security Systems at Orbital ATK. “Our unique capabilities to host separating and non-separating payloads represent a turning point in affordable access to space for small satellites and payloads.”

In addition to work performed at the company’s facility in Dulles, Virginia, Orbital ATK sites in Commerce, California, and Beltsville, Maryland, provided tanks and heat pipes to the EAGLE and Mycroft satellites.

Offline jacqmans

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #134 on: 04/17/2018 07:13 AM »
45th SW supports successful Atlas V launch of AFSPC-11 mission

By 45th Space Wing Public Affairs

CAPE CANAVERAL AIR FORCE STATION, Fla. – The U.S. Air Force’s 45th Space Wing supported United Launch Alliance’s successful launch of the AFSPC-11 spacecraft aboard an Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station Apr. 14 at 7:14 p.m. ET.

Today’s successful launch of AFSPC-11 enables the opportunity for increased satellite communications capabilities for the warfighter once its payload reaches geosynchronous orbit. The AFSPC-11 mission consists of the Continuous Broadcast Augmenting SATCOM (CBAS) forward payload and the EELV Secondary Payload Adapter (ESPA) Augmented Geosynchronous Laboratory Experiment (EAGLE) aft payload.

"The experiments and data collected will pay dividends to the future of space exploration and our knowledge of space capabilities, which directly supports the warfighter,” said Brig. Gen. Wayne Monteith, 45th Space Wing commander and mission Launch Decision Authority. “We could not do this without the expertise and continued awareness from our partners who work hard daily to put the space domain first. Congratulations to Space and Missile Systems Center, Air Force Research Laboratory, and United Launch Alliance on another successful launch!"

The AFSPC-11 mission also marks two of three launches this month supported by the 45th Space Wing this month alone launches this month and well on our way to the Drive to 48.

Offline gwiz

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #135 on: 04/29/2018 10:53 AM »
I think that's a typo.

Geosynchronous is 42,164.2 km semi major axis, which is 22,766.8 nmi (or 26,199.6 mi), while the given number is 24,498.1 nmi. That's a pretty big typo! Orbital period is 26.72 hours compared to 23.93 hours for GEO.
Probably 22,498 for delivery into a drift orbit.
Looks very like this from detection by Brad Young.
http://www.satobs.org/seesat/Apr-2018/0201.html

Offline gwiz

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #136 on: 04/29/2018 06:28 PM »
Two more objects catalogued 2018-036E and F, USA 285 and USA 286.  That's one payload more than we were expecting.  Mycroft and what?

Offline russianhalo117

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #137 on: 04/29/2018 06:47 PM »
Two more objects catalogued 2018-036E and F, USA 285 and USA 286.  That's one payload more than we were expecting.  Mycroft and what?
ESPASat SC bus can also deploy secondary payloads from itself.

Unless ARMOR (AFRL - 1201 Resilient Spacecraft Bus Development Experiment) was actually deployed and the payload information about it being fixed was an error otherwise their was an unannounced payload. The EAGLE graphics for the launch show 2 deployable sats.
« Last Edit: 04/29/2018 06:57 PM by russianhalo117 »

Offline Steven Pietrobon

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #138 on: 04/30/2018 07:01 AM »
EAGLE could carry six payloads, but only five were announced. Perhaps a sixth highly classified payload was carried as well, but was not announced due to its classified nature.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline FutureSpaceTourist

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Re: Atlas V 551 - AFSPC-11 - April 14, 2018
« Reply #139 on: 05/01/2018 06:52 AM »
Quote
A mission so complex that this type of trajectory is rarely attempted. Here’s how we did #AFSPC11

https://twitter.com/torybruno/status/991101916565225472

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