United Launch AllianceLaunch SuccessfulDedicated Rideshare

STP‑3

Name: Atlas V 551 | STP-3
Start: 2021-12-07T10:19:00Z
Location: Space Launch Complex 41, Cape Canaveral SFS, FL, USA

Atlas V 551

Launched Tue, Dec 7 · 10:19 AM UTC2021-12-07 10:19 UTCSpace Launch Complex 41, Cape Canaveral SFS, FL, USA

Reached orbit

Follow United Launch Alliance in the app Watch the replay

Success

Reached Geostationary Orbit

Worldwide

126th

orbital launch attempt in 2021

United Launch Alliance

5th

launch this year

Space Launch Complex 41

3rd

launch from this pad this year

Pad turnaround

52 d

since the pad's previous launch

Replay

Replay: Atlas V STP-3

Mission

Rideshare mission with the STPSat-6 satellite and six secondary payloads for the US Air Force. STPSat-6 carries the NNSA's Space and Atmospheric Burst Reporting System-3 (SABRS-3) payload and NASA's Laser Communications Relay Demonstration (LCRD) experiment.

Launch Provider

United Launch Alliance

Commercial · United States of America · Founded 2006 · CEO Mark Peller

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.

Launches

175

Successful

175

100%

Upcoming

scheduled

FliesAtlas Delta Vulcan

All United Launch Alliance launches Website Wikipedia

Updates

Dec 7 · 6:02 PM
Mission success confirmed
SwGustav
Dec 5 · 8:28 PM
24 hour delay
SwGustav
Dec 5 · 12:11 AM
24 hour delay
SwGustav
Dec 2 · 2:12 PM
Weather 90%
Nosu
Nov 22 · 7:14 PM
Delayed due to bad weather during launch vehicle processing.
spacevogel

Show earlier updates

Nov 11 · 9:51 AM
New launch window.
Cosmic_Penguin
Nov 9 · 6:55 PM
Delayed to December 4
Nosu
Sep 7 · 7:46 PM
Updated NET to 22 Nov
JRascagneres
Jun 7 · 4:44 PM
Delayed to July.
Cosmic_Penguin
Jun 4 · 1:06 PM
Launch delayed. No new date available yet.
Nosu
May 18 · 6:14 PM
New launch date from ULA's webcast for SBIRS-GEO-5.
Cosmic_Penguin
Jan 26 · 6:42 AM
Delayed to after OFT-2 launch.
Cosmic_Penguin

Atlas V 551

Vehicle history

Height

59.7m

Diameter

3.8m

To low Earth orbit

18,850kg

Liftoff thrust

12,269kN

Space Launch Now for iOS and Android

Notifications before every launch you follow, live countdowns on your home screen and watch, and webcasts as they start.

See what's in the app

Scan to open on your phone

[data-page-skeleton]{display:none}body{display:flex;flex-direction:column}body>footer{order:2}body>main{padding-bottom:0}body:has(>div[hidden][id^="S:"]>[data-data-unavailable]) header[data-site-header]{background:var(--canvas);border-color:var(--rule);color:var(--ink)}body:has(>div[hidden][id^="S:"]>[data-data-unavailable]) [data-header-scrim]{display:none}body>div[hidden][id^="S:"]>[data-data-unavailable]{max-width:calc(var(--container-content) + 2 * var(--s-5));padding:var(--s-9) var(--s-5) 0}body>div[hidden][id^="S:"]:last-of-type{padding-bottom:var(--s-9)}body:has(>div[id^="S:"] [data-app-promo])>div[hidden][id^="S:"]:last-of-type{padding-bottom:0}@layer base{body>div[hidden][id^="S:"]{display:block!important;order:1}}

United Launch AllianceLaunch SuccessfulDedicated Rideshare

STP‑3

Atlas V 551

Launched Tue, Dec 7 · 10:19 AM UTC2021-12-07 10:19 UTCSpace Launch Complex 41, Cape Canaveral SFS, FL, USA

Reached orbit

Follow United Launch Alliance in the app Watch the replay

Success

Reached Geostationary Orbit

Worldwide

126th

orbital launch attempt in 2021

United Launch Alliance

5th

launch this year

Space Launch Complex 41

3rd

launch from this pad this year

Pad turnaround

52 d

since the pad's previous launch

Replay

Replay: Atlas V STP-3

Mission

Launch Provider

United Launch Alliance

Commercial · United States of America · Founded 2006 · CEO Mark Peller

Launches

175

Successful

175

100%

Upcoming

scheduled

FliesAtlas Delta Vulcan

All United Launch Alliance launches Website Wikipedia

Updates

Dec 7 · 6:02 PM
Mission success confirmed
SwGustav
Dec 5 · 8:28 PM
24 hour delay
SwGustav
Dec 5 · 12:11 AM
24 hour delay
SwGustav
Dec 2 · 2:12 PM
Weather 90%
Nosu
Nov 22 · 7:14 PM
Delayed due to bad weather during launch vehicle processing.
spacevogel

Show earlier updates

Nov 11 · 9:51 AM
New launch window.
Cosmic_Penguin
Nov 9 · 6:55 PM
Delayed to December 4
Nosu
Sep 7 · 7:46 PM
Updated NET to 22 Nov
JRascagneres
Jun 7 · 4:44 PM
Delayed to July.
Cosmic_Penguin
Jun 4 · 1:06 PM
Launch delayed. No new date available yet.
Nosu
May 18 · 6:14 PM
New launch date from ULA's webcast for SBIRS-GEO-5.
Cosmic_Penguin
Jan 26 · 6:42 AM
Delayed to after OFT-2 launch.
Cosmic_Penguin

Atlas V 551

Vehicle history

Height

59.7m

Diameter

3.8m

To low Earth orbit

18,850kg

Liftoff thrust

12,269kN

Next From Cape Canaveral SFS

Cape Canaveral SFS schedule

Nov13Fri

Amazon Leo (LV-01)United Launch Alliance · Vulcan VC6L · Space Launch Complex 41, Cape Canaveral SFS, FL, USALow Earth OrbitTo be determinedTime TBD Nov—NET

Cygnus CRS-2 NG-25SpaceX · Falcon 9 Block 5 · Space Launch Complex 40, Cape Canaveral SFS, FL, USALow Earth OrbitTo be determinedNET November

Space Launch Now for iOS and Android

Notifications before every launch you follow, live countdowns on your home screen and watch, and webcasts as they start.

See what's in the app

Scan to open on your phone

STP‑3

Replay

More Videos

Mission

United Launch Alliance

Updates

Atlas V 551

STP‑3

Replay

More Videos

Mission

United Launch Alliance

Updates

Atlas V 551

Next From Cape Canaveral SFS

Next From Cape Canaveral SFS

STP‑3

Replay

More Videos

Mission

United Launch Alliance

Updates

Atlas V 551

Never Miss a Launch.

STP‑3

Replay

More Videos

Mission

United Launch Alliance

Updates

Atlas V 551

Next From Cape Canaveral SFS

Never Miss a Launch.

Next From Cape Canaveral SFS