United States Air ForceTitan IIICSpace Launch Complex 40, Cape Canaveral SFS, FL, USA
DSCS-2 5 & 6
Launched
May 20, 1975
Image: U.S. DoD
Summary
DSCS-2 5 & 6 launched on an United States Air Force Titan IIIC from Space Launch Complex 40, Cape Canaveral SFS, FL, USA on May 20, 1975. It was United States Air Force's 638th launch, 9th this year and humanity's 1,694th orbital launch attempt. It was the 22nd Titan IIIC flight and the 1st this year. The payload was bound for Geostationary Orbit (Direct-GEO). DSCS II F-5, one of 3 catalogued objects, reached a 161 × 331 km orbit inclined 28.6°. 3 objects from this launch are catalogued, 2 of them payloads.
- Watch
- No webcast on record.
- Vehicle
- Titan IIIC · United States Air Force
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Geostationary Orbit (Direct-GEO)
- Milestone
- 22nd Titan IIIC flight · 1st this yearUnited States Air Force's 638th launch9th this yearhumanity's 1,694th orbital launch attempt43rd orbital launch attempt this year
Flight preview
Orbit: as tracked
DSCS II F-5 · NORAD 7807 · 1975-040 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1975-040A
- Epoch
- 1975-05-20 15:13:03 UTC
- Mean motion
- 16.12742825 rev/day
- Eccentricity
- 0.0128471
- Inclination
- 28.5563°
- Ascending node
- 271.8929°
- Arg. of perigee
- 110.9323°
- Mean anomaly
- 250.5072°
- 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: Direct-GEO. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 2 payloads, 1 rocket stage; none still in orbit
- DSCS II F-5 · NORAD 7807 · re-entered May 26, 1975
- DSCS II F-6 · NORAD 7808 · re-entered May 26, 1975
Transtage 25 · re-entered May 21, 1975
Data from J. McDowell, planet4589.org
About this launch
Satellites designed to provide secure voice and data communications for the US military.
Pad
Space Launch Complex 40, Cape Canaveral SFS, FL, USA
12th launch from Space Launch Complex 40, 1st this year · 293rd from Cape Canaveral SFS, FL, USA
403 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
355 days after the previous launch from this pad
Questions
When did DSCS-2 5 & 6 launch?
DSCS-2 5 & 6 launched on May 20, 1975. The time is known to the hour, not the minute.
Where can I watch DSCS-2 5 & 6?
No webcast is on record for this launch.
What rocket launched DSCS-2 5 & 6?
Titan IIIC, flown by United States Air Force. Titan IIIC spec sheet
Where did DSCS-2 5 & 6 launch from?
Space Launch Complex 40, Cape Canaveral SFS, FL, USA.
What orbit did DSCS-2 5 & 6 reach?
DSCS II F-5, one of 3 catalogued objects, reached a 161 × 331 km orbit inclined 28.6°.
How many satellites did DSCS-2 5 & 6 launch?
2 payloads from this launch are catalogued, none of them still in orbit (Data from J. McDowell, planet4589.org).