Success
SBIRS GEO-5
Government/Top Secret
United Launch Alliance(ULA)CommercialAtlas V 421
GTOorbit
Fifth geosynchronous satellite of the Space Based Infrared System program (SBIRS), providing capabilities for early missile warning and missile defense. SBIRS GEO-5 is the first satellite using Lockheed Martin's LM2100 combat bus.
Tuesday, May 18, 2021 at 5:37 PM
Replay
Links
Mission details
Orbital Attempt
#6,081
ULA Mission
#145
Pad Launch
#100
Location Launch
#821
Designator
2021-042
Launch Window
NET
May 18, 2021, 5:37 PM
Schedule Changes
1 update
Lift Off
5:31 PM
Window Open
6:11 PM
Window Close
Atlas V 421 Specs
Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The 421 version uses a 4m wide fairing, 2 solid rocket boosters and one engine on the Centaur stage.
Length
58.3 m
Diameter
3.8 m
Launch Mass
433 t
LEO Capacity
14,067 kg
GTO Capacity
6,890 kg
Launch Cost
$123M
Reusable
No
Maiden Flight
2007
Fastest Turnaround
6mo 6d
Total Launches
9
Successful
9
Failed
0
Consecutive Success
9
Maiden flight: Oct 11, 2007
Social Flight Log
- May 18, 2021, 6:54 PM
Successful launch
Source - May 17, 2021, 4:39 PM
Scrubbed for the day.
Source - May 17, 2021, 3:50 PM
HOLDING
Source - May 17, 2021, 2:49 AM
Updated launch window.
Source - May 14, 2021, 1:47 AM
Weather 90% GO
Source - May 6, 2021, 2:58 PM
Updated launch time.
Source - Mar 25, 2021, 8:17 PM
Launch is scheduled for May 17 according to USSF press release.
Source
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.
Founded
2006
Administrator
Interim CEO: John Elbon
Total Launches
173
Successful
173
Failed
0
Pending
38
Consecutive Success
173
Cape Canaveral SFS, FL, USA
Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.
Timezone
America/New_York
Local Launch Time
May 18, 2021, 1:37 PM
Total Launches
1,109
Total Landings
75
Coordinates
28.4889, -80.5778