Explorer 34 (IMP-F)

Launch Success

Liftoff Time (GMT)

14:05:54

Wednesday May 24, 1967

Mission Details

IMP-F (Explorer 34)

Wiki

This spacecraft was placed into a high-inclination, highly eccentric earth orbit. The apogee point was located near the ecliptic plane and had an initial local time of about 1900 h. The spacecraft was spin-stabilized and had an initial spin period of 2.6 s. The spin vector was approximately perpendicular to the ecliptic plane. Like the earlier IMPs, this spacecraft was instrumented to study interplanetary magnetic fields, energetic particles, and plasma. The spacecraft optical aspect system failed on 04 March 1969. Otherwise, useful data were acquired until just before spacecraft reentry, which occurred on 03 May 1969.

Highly Elliptical Orbit

1 Payload

163 kilograms

Rocket

Retired
Delta E1

Active 1966 to 1971


Payload to Orbit

GTO: 205 kg

Stages

3

Strap-ons

3

Launch Site

SLC-2E (75-1-1)

Vandenberg SFB, California, USA

Fastest Turnaround

3 days 22 hours

Stats

Delta E


12th

Mission

5th

Mission of 1967

1967


55th

Orbital launch attempt