Atlas V 551 | NROL-107 (Silent Barker)
Space Launch Complex 41
Cape Canaveral SFS, FL, USA
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United Launch Alliance
United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.
NROL-107 (Silent Barker)
Classified space situational awareness (SSA) payload for the US National Reconnaissance Office (NRO).
Atlas V 551
Height 59.70 Meters
Max Stages 2
Mass To GTO 8890 kg
Liftoff Thrust 12269 kN
Diameter 3.80 Meters
Mass To LEO 18850 kg
Liftoff Mass 573 Tonnes
Launch Success 14
Consecutive Success 14
Maiden Flight 2006-01-19
Launch Failures 0
Updates
Nosu
2023-09-10T19:25:54+0000
Launch success confirmed
Nosu
2023-09-10T12:47:15+0000
Liftoff
LL2
2023-09-10T12:29:27+0000
Livestream has started
Cosmic_Penguin
2023-09-10T07:23:00+0000
Weather 90% Go.
Cosmic_Penguin
2023-09-09T09:22:43+0000
Scrubbed for the day due to ordnance circuit issue.
Cosmic_Penguin
2023-09-09T06:57:40+0000
Weather 90% GO.
Nosu
2023-09-07T19:19:17+0000
Weather 85%
Cosmic_Penguin
2023-09-04T14:06:37+0000
New launch date and time per marine navigation warnings.
Nosu
2023-08-30T09:10:56+0000
TBD September due to weather
Cosmic_Penguin
2023-08-29T00:00:57+0000
Launch delayed due to decision to rollback in view of upcoming hurricane.
hitura-nobad
2023-08-26T14:48:44+0000
Weather 70% GO
Cosmic_Penguin
2023-08-22T14:16:14+0000
Added launch time, set GO.
Cosmic_Penguin
2023-07-28T17:12:20+0000
NET August 29.
Cosmic_Penguin
2023-07-24T02:11:39+0000
NET August.
Nosu
2023-04-01T17:52:18+0000
Targeting Q3
Related News
2023-09-10T12:57:40+0000
SpaceNews
ULA’s Atlas 5 launches National Reconnaissance Office mission
2023-09-10T00:07:07+0000
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ULA conducts NROL-107 launch, last Atlas NRO mission
2023-08-29T20:56:42+0000
Teslarati
United Launch Alliance readies for first Atlas V launch of the year
2023-08-29T00:07:07+0000
NASASpaceflight
ULA delays NROL-107 launch, last Atlas NRO mission
2023-08-28T23:46:42+0000
SpacePolicyOnline.com
SILENTBARKER To Be U.S. “Watchdog” in Geosynchronous Orbit
2023-08-02T21:39:41+0000
The Launch Pad
