United States Air ForceThor Delta E1Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
ESSA 9
Launched
February 26, 1969
Image: NASA
Summary
ESSA 9 launched on an United States Air Force Thor Delta E1 from Space Launch Complex 17B, Cape Canaveral SFS, FL, USA on February 26, 1969. It was United States Air Force's 482nd launch, 8th this year and humanity's 940th orbital launch attempt. It was the 15th Thor Delta E1 flight and the 2nd this year. The payload was bound for Sun-Synchronous Orbit (SSO). ESSA 9, one of 4 catalogued objects, reached a 1,430 × 1,488 km orbit inclined 101.8°. 4 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Thor Delta E1 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Earth Science · Sun-Synchronous Orbit (SSO)
- Milestone
- 15th Thor Delta E1 flight · 2nd this yearUnited States Air Force's 482nd launch8th this yearhumanity's 940th orbital launch attempt21st orbital launch attempt this year
Flight preview
Orbit: as tracked
ESSA 9 · NORAD 3764 · 1969-016 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- ESSA 9 (TOS-G)
- Object ID
- 1969-016A
- Epoch
- 1969-02-26 09:01:58 UTC
- Mean motion
- 12.53013916 rev/day
- Eccentricity
- 0.003699
- Inclination
- 101.7926°
- Ascending node
- 12.8554°
- Arg. of perigee
- 145.4022°
- Mean anomaly
- 214.9364°
- Element set
- 999
- Rev at epoch
- 1
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: SSO. Ascent drawn from padside's representative profile.
Catalogued objects
4 catalogued: 1 payload, 1 rocket stage, 2 components; 4 still in orbit
- ESSA 9 · NORAD 3764 · in orbit
FW4D · in orbit
Data from J. McDowell, planet4589.org
About this launch
The ESSA series was the second generation of US meterological satellites after the TIROS (Television & Infra-Red Observation Satellite) series. They were also called OT (Operational TIROS), TOS (TIROS Operational Satellite).
Pad
Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
37th launch from Space Launch Complex 17B, 2nd this year · 232nd from Cape Canaveral SFS, FL, USA
132 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
34 days after the previous launch from this pad
Questions
When did ESSA 9 launch?
ESSA 9 launched on February 26, 1969. The time is known to the hour, not the minute.
Where can I watch ESSA 9?
No webcast is on record for this launch.
What rocket launched ESSA 9?
Thor Delta E1, flown by United States Air Force. Thor Delta E1 spec sheet
Where did ESSA 9 launch from?
Space Launch Complex 17B, Cape Canaveral SFS, FL, USA.
What orbit did ESSA 9 reach?
ESSA 9, one of 4 catalogued objects, reached a 1,430 × 1,488 km orbit inclined 101.8°.
How many satellites did ESSA 9 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).