Soviet Space ProgramTsiklon-290, Baikonur Cosmodrome, Republic of Kazakhstan
US-P 2
Launched
October 29, 1975
Image: Ukrainian Space Agency
Summary
US-P 2 launched on a Soviet Space Program Tsiklon-2 from 90, Baikonur Cosmodrome, Republic of Kazakhstan on October 29, 1975. It was Soviet Space Program's 961st launch, 75th this year and humanity's 1,758th orbital launch attempt. It was the 20th Tsiklon-2 flight and the 3rd this year. The payload was bound for low Earth orbit (LEO). Kosmos-777, one of 63 catalogued objects, reached a 435 × 452 km orbit inclined 65.0°. 63 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Tsiklon-2 · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 20th Tsiklon-2 flight · 3rd this yearSoviet Space Program's 961st launch75th this yearhumanity's 1,758th orbital launch attempt107th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-777 · NORAD 8416 · 1975-102 · Space-Track · tracking 1 of 63 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1975-102A
- Epoch
- 1975-10-29 17:01:06 UTC
- Mean motion
- 15.43239235 rev/day
- Eccentricity
- 0.0012313
- Inclination
- 65.0138°
- Ascending node
- 236.2515°
- Arg. of perigee
- 263.8787°
- Mean anomaly
- 96.0902°
- Element set
- 999
- Rev at epoch
- 4
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
63 catalogued: 1 payload, 1 rocket stage, 59 debris, 2 components; none still in orbit
- Kosmos-777 · NORAD 8416 · broke up January 25, 1976
Tsiklon-2 14-420 Stage 2 · re-entered October 30, 1975
Data from J. McDowell, planet4589.org
About this launch
Ocean surveillance satellite using passive ELINT devices
Pad

90, Baikonur Cosmodrome, Republic of Kazakhstan
2nd launch from 90, 1st this year · 437th from Baikonur Cosmodrome, Republic of Kazakhstan
74 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
about 3 years after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-P 2 launch?
US-P 2 launched on October 29, 1975. The time is known to the hour, not the minute.
Where can I watch US-P 2?
No webcast is on record for this launch.
What rocket launched US-P 2?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did US-P 2 launch from?
90, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did US-P 2 reach?
Kosmos-777, one of 63 catalogued objects, reached a 435 × 452 km orbit inclined 65.0°.
How many satellites did US-P 2 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
