Payload
ESSA 4 (TOS-B)
NonoperationalPayloadLEONORAD 2657
ESSA 4 (TOS-B) is a United States payload satellite, launched on January 26, 1967 into LEO.
Launch
- Launch date
- January 26, 1967 at 05:31 PM UTC
- Launch site
- Vandenberg SFB, USA
- Launched by
- Thor Delta E →
- Operator
- United States Air Force
- Mission
- ESSA 4
- Launch record
- View full launch →
Orbit
- Orbit regime
- LEO
- Apoapsis
- 1,439 km
- Periapsis
- 1,326 km
- Inclination
- 102.08°
- Orbital period
- 113.4 min
Spacecraft
- Operator
- United States
- Launch mass
- 132 kg
- Dimensions
- Ø1.1 × 0.6 m
Identity
- COSPAR (Int'l)
- 1967-006A
- NORAD catalog №
- 2657
- Object type
- Payload
- Owner / operator
United States- Radar cross-section
- 0.7499 m²
- Status
- Nonoperational
End of mission
- Fate
- No longer operational — remains in orbit as inactive.
- Final status
- Nonoperational