Thor Delta E1 | Isis 2

The Earth Science flight Thor Delta E1 | Isis 2 departed Vandenberg SFB, CA, USA atop a Thor Delta E1, bound for LEO.

Launch time
Status
SUCCESS
Operator
United States Air Force
Mission type
Earth Science
Rocket
Thor Delta E1
Launch site
Vandenberg SFB, CA, USA
Launch pad
Space Launch Complex 2E
Payload
—
Target orbit
LEO
Thor Delta E1 | Isis 2 cover image

Mission timeline

  1. 1971-04-01T02:57:07.000Z
    Liftoff
    Thor Delta E1 roars off the pad at Vandenberg SFB, CA, USA.
  2. Max-Q
    The vehicle reaches Max Q, the highest aerodynamic load of the flight.
  3. Main engine cutoff (MECO)
    MECO — first-stage propulsion ends after a nominal burn.
  4. Stage separation
    Clean stage separation confirmed.
  5. Second-stage ignition
    The upper-stage engine lights up after separation.
  6. Orbit insertion
    Orbit insertion confirmed — now circling in LEO.
  7. Mission success
    All mission objectives achieved.

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