Author Topic: LIVE: WorldView-4 - Atlas V 401 - November 11, 2016 (18:30 UTC)  (Read 117578 times)

Online Targeteer

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Re: WorldView-4 - Atlas V - NET September 2016 (updates)
« Reply #40 on: 07/26/2016 09:59 PM »
http://blog.digitalglobe.com/2016/07/25/worldview-4s-atlas-v-launch-vehicle-to-carry-seven-cubesat-missions-for-nro/?utm_source=twitter&utm_medium=social&utm_campaign=WV4

DigitalGlobe has included a cubesat rideshare program on the United Launch Alliance (ULA) Atlas V rocket scheduled to carry the WorldView-4 imaging satellite to orbit in mid-September from Vandenberg Air Force Base, Calif. The Atlas V launch vehicle has a greater lift capability than is needed to place the WorldView-4 satellite into its required orbit. Rather than letting the excess capability go to waste, DigitalGlobe has allocated a portion of the excess launch vehicle performance capability to launch a number of cubesats, a concept known as “ridesharing.”

Ridesharing is a flight-proven, innovative approach that provides lower-cost access to space by eliminating the need for a dedicated launch vehicle. Cubesats are miniaturized satellites as small as 10 cm x 10 cm x 10 cm and weighing as little as 1 kilogram.

The cubesats will be launched by use of ULA’s Centaur Aft Bulkhead Carrier that has flow n successfully on four previous Atlas V missions. All of the cubesats manifested for the WorldView-4 mission are sponsored by the U.S. National Reconnaissance Office and are unclassified technology demonstration programs. DigitalGlobe is also partnering with California Polytechnic State University, Tyvak Nano-Satellite Systems Inc., Lockheed Martin and United Launch Alliance to bring this rideshare program to fruition.

The addition of a rideshare program poses no material risk to a successful and on-time launch of WorldView-4. The cubesats are unpowered throughout the launch, separate from the launch vehicle well after the WorldView-4 satellite is deployed, and are deliberately placed into Low Earth Orbits sufficiently different from WorldView-4’s orbit.

The manifest will include a total of seven cubesats. Further details about the cubesats selected to fly along with WorldView-4 will be released to the public closer to the launch date.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online jacqmans

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Re: WorldView-4 - Atlas V - NET September 2016 (updates)
« Reply #41 on: 08/04/2016 10:03 AM »

Offline Steven Pietrobon

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Re: WorldView-4 - Atlas V - NET September 2016 (updates)
« Reply #42 on: 08/19/2016 05:14 AM »
The AFSPC-6 webcast mentioned that the Worldview 4 launch will also carry seven rideshare cubesats.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Star One

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Re: WorldView-4 - Atlas V - NET September 2016 (updates)
« Reply #43 on: 08/19/2016 06:27 AM »
The AFSPC-6 webcast mentioned that the Worldview 4 launch will also carry seven rideshare cubesats.

Any hints as to what these will be?

Offline Skyrocket

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Re: WorldView-4 - Atlas V - NET September 2016 (updates)
« Reply #44 on: 08/19/2016 06:38 AM »
The AFSPC-6 webcast mentioned that the Worldview 4 launch will also carry seven rideshare cubesats.

Any hints as to what these will be?

Besides that they are all NRO sponsored, but non-classified, nothing has been revealed by now.

Offline Steven Pietrobon

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Re: WorldView-4 - Atlas V - NET September 2016 (updates)
« Reply #45 on: 08/19/2016 08:36 AM »
One of them might be Biarri Point.

http://space.skyrocket.de/doc_sdat/biarri.htm
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Star One

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Re: WorldView-4 - Atlas V 401 - September 15, 2016
« Reply #46 on: 08/31/2016 10:35 PM »
Launch is now September 16th.

DDigitalGlobe – ‏@DigitalGlobe
#WV4 launch is now scheduled for Sept 16. Visit our microsite for satellite & launch info:  http://ow.ly/i20T303LVvS

https://mobile.twitter.com/DigitalGlobe/status/771068482003865600
« Last Edit: 08/31/2016 10:35 PM by Star One »

Offline Steven Pietrobon

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Re: WorldView-4 - Atlas V 401 - September 15, 2016
« Reply #47 on: 09/01/2016 05:59 AM »
Launch time is 11:30 - 11:44 AM PDT (18:30 to 18:44 UTC).

http://worldview4.digitalglobe.com/#/main
« Last Edit: 09/01/2016 06:00 AM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online jacqmans

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #48 on: 09/09/2016 10:25 AM »
Atlas V to Launch WorldView-4

Rocket/Payload: A United Launch Alliance Atlas V 401 configuration rocket will launch the WorldView-4 mission for Digital Globe. The Atlas V is provided by Lockheed Martin Commercial Launch Services.

Date/Site/Launch Time: Friday, Sept. 16, 2016, from Space Launch Complex (SLC)-3 at Vandenberg Air Force Base, California.

Mission Description: WorldView-4, a multispectral, high-resolution commercial imaging satellite owned and operated by DigitalGlobe, will help customers around the world see more of our changing planet. The satellite was built by Lockheed Martin Space Systems Company and will provide 31-centimeter panchromatic resolution and 1.24-meter multispectral resolution—the same resolution offered by the WorldView-3 satellite. This industry-leading resolution provides the sharpest view of vital details on the ground, to give customers confidence when making critical decisions.

Launch Notes: WorldView-4 marks ULA’s 9th launch of 2016 and 112th since the company was founded in 2006. ULA also launched WorldView-3 on Atlas V in 2014.

Launch Updates: To keep up to speed with updates to the launch countdown, dial the ULA launch hotline at 1-877-852-4321 or join the conversation at www.facebook.com/ulalaunch, twitter.com/ulalaunch and instagram.com/ulalaunch. Hashtags #WV4 and #AtlasV.

Go Atlas! Go Centaur! Go WorldView-4!

Offline catdlr

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #49 on: 09/12/2016 04:18 AM »
The following is a press advisory from Vandenberg AFB:

FOR IMMEDIATE RELEASE
From: 30th Space Wing Public Affairs, www.vandenberg.af.mil

ATLAS V LAUNCH SCHEDULED

VANDENBERG AIR FORCE BASE, Calif. - Team Vandenberg is scheduled to launch
the WorldView-4 satellite on an Atlas V rocket from Space Launch Complex-3
here Friday, Sept. 16, with a launch window opening at 11:30 a.m. PDT.

The rocket, a United Launch Alliance Atlas V 401 provided by
Lockheed Martin Commercial Launch Services, has a four meter fairing to
safely hold the satellite as it accelerates to 17,000 miles per hour during
launch - more than seven times faster than the top speed clocked by the
SR-71 Blackbird, the fastest jet plane ever.

The 30th Space Wing at Vandenberg Air Force Base is responsible for range
safety and launch operations.

Col. Chris Moss, 30th Space Wing commander, will be the launch
decision authority.

"Team V is excited to launch the Atlas V WorldView-4 mission from
Vandenberg's Western Range.  The combined 30th Space Wing and United Launch
Alliance team has spent months preparing to ensure this launch is both safe
and successful.  We have a very strong partnership with ULA and we're proud
to have teamed with them on this fantastic mission," said Moss.

WorldView-4 is the latest in a series of imaging and data
satellites built by Lockheed Martin for customers around the world. The
satellite is outfitted with cutting-edge star trackers that enable extremely
precise pointing for its imaging system, which is so advanced it can discern
the make of a car from its orbit in space.

The local community can view this launch from the Hawk's Nest on
Hwy 1 just a half mile south of Vandenberg Air Force Base's main gate.
Tony De La Rosa

Offline zubenelgenubi

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #50 on: 09/12/2016 06:01 PM »
http://www.lockheedmartin.com/us/news/press-releases/2016/september/ssc-090816-worldview4-encapsulation.html
Countdown to Launch: Lockheed Martin-Built WorldView-4 Imaging Satellite Encapsulated for Sept. 16 Launch

Caption (first attached image): Built by Lockheed Martin, DigitalGlobe’s WorldView-4 satellite is enclosed in the four-meter fairing that will then be placed atop an Atlas V 401 rocket. Photo courtesy of Lockheed Martin and United Launch Alliance.

Vandenberg air force Base, Calif., Sept. 8, 2016 – The WorldView-4 satellite, built by Lockheed Martin (NYSE: LMT) for DigitalGlobe, Inc. (NYSE: DGI), has been encapsulated in its protective launch vehicle fairing. It is scheduled to launch Sept. 16 aboard a United Launch Alliance Atlas V rocket.

For encapsulation, WorldView-4 was connected to an adapter and then enclosed in the four-meter fairing or “nose cone.” The satellite will now be transported by truck to Vandenberg Air Force Base’s Space Launch Complex 3 East where it will be lifted by crane and mated with the Atlas rocket.

“Encapsulation is the last time people will ever lay eyes on this satellite before it launches to space,” said Steve Skladanek, president of Lockheed Martin Commercial Launch Services. “Our Atlas rocket is ready to provide WorldView-4 a smooth ride and precise delivery into orbit.”

The Atlas V 401 rocket is provided by Lockheed Martin Commercial Launch Services. WorldView-4 is the latest in a series of imaging and data satellites built by Lockheed Martin for customers around the world.

Once launched, the satellite will more than double DigitalGlobe’s coverage of the world’s highest-resolution 30 cm commercial satellite imagery and increase the rate at which it grows its 16-year library of time-lapse, high-resolution imagery. WorldView-4 will orbit Earth every 90 minutes, traveling 17,000 miles per hour and capturing as much as 680,000 square kilometers of the Earth’s surface daily (18 terabytes) – the equivalent of the land area of Texas.

For additional information, visit our website: http://www.lockheedmartin.com/worldview4.

***
More WorldView-4 images can be found at the WorldView-4 flickr account:
https://www.flickr.com/photos/lockheedmartin/sets/72157670920805846
The second attached image shows the PLF artwork.

***
The third attached image is from the ULA web site, showing the Astrotech banner on the wall of the launch processing facility.
« Last Edit: 09/13/2016 01:40 AM by zubenelgenubi »
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Offline zubenelgenubi

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #51 on: 09/12/2016 06:13 PM »
Link to an interesting "FAQ" blogpost on the DigitalGlobe web site, dated September 8, 2016:
http://blog.digitalglobe.com/2016/09/08/frequently-asked-questions-about-worldview-4/
Frequently Asked Questions about WorldView-4
by Dr. Walter Scott, DigitalGlobe Founder and CTO

***
I particularly enjoyed the 2 views, nadir and oblique, of the Las Vegas Strip.
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Offline Newton_V

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Re: WorldView-4 - Atlas V - NET September 2016 (updates)
« Reply #52 on: 09/12/2016 06:35 PM »
The AFSPC-6 webcast mentioned that the Worldview 4 launch will also carry seven rideshare cubesats.

Any hints as to what these will be?

The whole package is called Enterprise (as in Star Trek Enterprise)

Offline Skyrocket

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #53 on: 09/12/2016 07:05 PM »
The AFSPC-6 webcast mentioned that the Worldview 4 launch will also carry seven rideshare cubesats.

Any hints as to what these will be?

The whole package is called Enterprise (as in Star Trek Enterprise)

But still no announcement, which cubesats there are.

Offline russianhalo117

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #54 on: 09/12/2016 08:47 PM »
The AFSPC-6 webcast mentioned that the Worldview 4 launch will also carry seven rideshare cubesats.

Any hints as to what these will be?

The whole package is called Enterprise (as in Star Trek Enterprise)

But still no announcement, which cubesats there are.
correct. I got a generic we can neither confirm nor deny and cannot provide any info at this time response in a few emails I received,

Offline zubenelgenubi

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #55 on: 09/13/2016 11:30 PM »
http://www.lockheedmartin.com/us/news/press-releases/2016/september/ssc-space-WorldView4-Launch.html
Lockheed Martin to Launch DigitalGlobe’s WorldView-4 Satellite Sept. 16

VANDENBERG AIR FORCE BASE, California, Sept. 13, 2016 – Lockheed Martin [NYSE:LMT] is set to launch the WorldView-4 high-resolution imaging satellite for DigitalGlobe, Inc. (NYSE:DGI), aboard a United Launch Alliance Atlas V rocket on Sept. 16, 2016. WorldView-4, also built by Lockheed Martin, will capture photos and data about earth.

Rocket/Payload: Atlas V 401 flying the WorldView-4 mission for customer DigitalGlobe.

Location: Space Launch Complex 3 East at Vandenberg Air Force Base, California.

Date/Time: Friday, Sept. 16, 2016

Launch Time: The launch window opens at 11:30 a.m. PDT and closes at 11:44 a.m. PDT. Separation occurs approximately 20 minutes after liftoff.

Mission Description: This mission will deliver the WorldView-4 satellite into a 617 km, sun-synchronous orbit for DigitalGlobe, the global leader in earth imagery and information about our changing planet.
* By leveraging DigitalGlobe’s advanced constellation scheduling system to operate in concert with WorldView-3, WorldView-4 will more than double DigitalGlobe’s coverage of the world’s highest-resolution 30 cm commercial satellite imagery.
* Once launched, the satellite will orbit earth every 90 minutes, traveling 17,000 miles per hour and capturing as much as 680,000 square kilometers of the Earth’s surface daily (18 terabytes) – the equivalent of the land area of Texas.
* Also aboard the launch will be seven U.S. Government-owned CubeSats that will be deployed after separation of the WorldView-4 satellite.

Launch Provider: Lockheed Martin Commercial Launch Services is the exclusive provider of Atlas V rockets to all non-U.S. government customers. With dedicated launch sites and unparalleled orbital insertion accuracy, Atlas V is unmatched for performance, reliability and schedule assurance.

Updates: To keep up-to-speed with updates to the launch and learn more about the WorldView-4 mission visit www.lockheedmartin.com/worldview4 .
« Last Edit: 09/13/2016 11:31 PM by zubenelgenubi »
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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #56 on: 09/14/2016 07:52 AM »
Names of 7 Cubesats (according to SFN):

Prometheus A and B, Aerocube 8C and D, U2U, CELTEE, RAVAN.
Waldemar Zwierzchlejski (astropl)
http://lk.astronautilus.pl

Offline zubenelgenubi

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #57 on: 09/14/2016 11:39 AM »
Three questions:
1) Any Notices to Airmen or Mariners?

2) Leading from question 1: Do we know the planned final disposition of the Centaur after delivering the Cubesats?

3) Weather forecast for launch?
2 EDITS: Answer in SFN article: 70% acceptable

More from Satnews article:
Overall probability of violating weather constraints: 30 percent
Areas of concern: Launch Visibility
Overall probability of violating weather constraints for 24 Hour Delay: 20 percent
Areas of concern: Launch Visibility

Further question re: launch availability--that's cloud cover blocking optical tracking of the launch?

Thank you!
« Last Edit: 09/14/2016 05:06 PM by zubenelgenubi »
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Offline Newton_V

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #58 on: 09/14/2016 02:08 PM »
Three questions:

Leading from question 1: Do we know the planned final disposition of the Centaur after delivering the Cubesats?

Thank you!

It's heading off to never never land!

Offline zubenelgenubi

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Re: WorldView-4 - Atlas V 401 - September 16, 2016
« Reply #59 on: 09/14/2016 06:53 PM »
Three questions:

Leading from question 1: Do we know the planned final disposition of the Centaur after delivering the Cubesats?

Thank you!

It's heading off to never never land!

Further research into the final disposition of the Centaurs used in Atlas V 401 launches from Vandenberg:
Satellite(s)         Destination Orbit           Mass (kg)            Centaur orbit after final maneuvers
DMSP-5D3 F18    Sun-Synchronous Orbit    ~1200                    heliocentric (Earth escape)

Intruder 6A/6B    1100 km circ X 63 deg     ~6500 for the pair  470km X 780km X 64.7 deg
+ 12 cubesats

Landsat 8            SSO                               2623                      heliocentric

DMSP-5D3 F19    SSO                               ~1200                    heliocentric

Worldview-3        SSO                               2800                      heliocentric

Intruder 7A/7B    1100 km circ X 63 deg    ~6500 for the pair   496km X 800km X 64.8 deg
+ 13 cubesats

Worldview-4        SSO                               2600                      ?
+ 7 cubesats
Sources: Gunter's Space Page, Jonathan's Space Report, and Heavens-Above.com

The excess capacity of the Centaurs used in the launches of all the lighter payloads was used to put the Centaurs into heliocentric orbit.

The above information leads me to predict that the Centaur used in this launch can and will be dispatched into heliocentric orbit.
« Last Edit: 09/14/2016 06:56 PM by zubenelgenubi »
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