United Launch AllianceAtlas V 551Space Launch Complex 41, Cape Canaveral SFS, FL, USA
AEHF-6
Launched
March 26, 2020
Summary
AEHF-6 launched on an United Launch Alliance Atlas V 551 from Space Launch Complex 41, Cape Canaveral SFS, FL, USA on March 26, 2020. It was United Launch Alliance's 139th launch, 2nd this year and humanity's 5,946th orbital launch attempt. It was the 11th Atlas V 551 flight and the 1st this year. The payload was bound for Geostationary Transfer Orbit (GTO). OrCa, one of 3 catalogued objects, reached a 164 × 35,002 km orbit inclined 26.5°. 3 objects from this launch are catalogued, 2 of them payloads.
- Watch
- Live Broadcast: Atlas V AEHF-6United Launch Alliance
- Vehicle
- Atlas V 551 · United Launch Alliance
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Transfer Orbit (GTO)
- Milestone
- 11th Atlas V 551 flight · 1st this yearUnited Launch Alliance's 139th launch2nd this yearhumanity's 5,946th orbital launch attempt24th orbital launch attempt this year
Webcast
Flight preview
Orbit: as tracked
OrCa · NORAD 45464 · 2020-022 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 2020-022A
- Epoch
- 2020-03-26 15:33:22 UTC
- Mean motion
- 2.34170849 rev/day
- Eccentricity
- 0.7271889
- Inclination
- 26.4735°
- Ascending node
- 319.3391°
- Arg. of perigee
- 179.1988°
- Mean anomaly
- 178.3033°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: GTO. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 2 payloads, 1 rocket stage; 2 still in orbit
- OrCa · NORAD 45464 · re-entered September 28, 2022
- AEHF SV-6 · NORAD 45465 · in orbit
Centaur AV-086 · in orbit
Data from J. McDowell, planet4589.org
About this launch
This is the sixth and final satellite in the Advanced Extremely High Frequency (AEHF) system, which is a series of communications satellites operated by the United States Air Force Space Command. It provides global, survivable, protected communications capabilities for strategic command and tactical warfighters operating on ground, sea and air platforms.
Pad

Space Launch Complex 41, Cape Canaveral SFS, FL, USA
96th launch from Space Launch Complex 41, 2nd this year · 797th from Cape Canaveral SFS, FL, USA
125 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
45 days after the previous launch from this pad
Questions
When did AEHF-6 launch?
AEHF-6 launched on March 26, 2020. The time is known to the hour, not the minute.
Where can I watch AEHF-6?
Coverage: Live Broadcast: Atlas V AEHF-6. Watch the replay
What rocket launched AEHF-6?
Atlas V 551, flown by United Launch Alliance. Atlas V 551 spec sheet
Where did AEHF-6 launch from?
Space Launch Complex 41, Cape Canaveral SFS, FL, USA.
What orbit did AEHF-6 reach?
OrCa, one of 3 catalogued objects, reached a 164 × 35,002 km orbit inclined 26.5°.
How many satellites did AEHF-6 launch?
2 payloads from this launch are catalogued, 1 of them still in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Atlas V 551 - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fatlas2520v2520551_image_20190224012316.jpeg&w=1600)