Explorer 28

USA

Interplanetary Monitoring Probe, also called IMP-C

Launch data:

Designation01388 / 65042A
Launch date29 May 1965 - 12:00 UT
Launch siteCC, LC-17B
Launch vehicleDelta-C (#441/D31)
MissionScientific: magnetosphere study
Earth orbit:
Perigee/Apogee 229/261206 km
Inclination30.5°
Period 8419.7 min
Mass59 kg

Spacecraft data:

Prime manufactor 
Platform 
Operator 
Mass at launch   kg
Dry Mass  kg
Basic shape  
Dimensions (m) 
Solar array  
Stabilization  
DC power  

End of life

Decay 4 Jul 1968
Ref.: #7, #15, #81 - update: 9.07.05 Home