Transit 4A

USA

First 3 satellites launched together, 2 satellites didn′t separated.

Launch data:

Designation00116 / 1961 Omicron 1 / 61015A
Launch date29 Jun 1961 - 4:22 UT
Launch siteCC, LC17B
Launch vehicleThor-DM21 Ablestar (#315 AB008)
MissionNavigation
Earth orbit on Jun 29, 1961 (.2):
Perigee / Apogee 881 x 998 km
Eccentricity 0.008
Inclination 66.81 deg
Period 103.82 min
Earth orbit on May 28, 2000 (.09):
Perigee / Apogee 876 x 978 km
Eccentricity 0.007
Inclination 66,81°
Period 103,55 min

Transit 4A with Solrad 3 & Injun1


First satellite using a SNAP nuclear generator for power supply.

Launched together with: Solrad 3/Injin 1

Spacecraft data:

Prime manufactor 
Platform 
Operator 
Mass at launch 79.1 kg
Dry Mass  kg
Basic shape  Cylinder
Dimension (m) 0.79 long, 1.09 dia
Equipment 
Solar array 
Stabilization  
Propulsion 
DC power  
Design lifetime  600 yrs

Satellite tracking:

Real time satellite tracking
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