Also called:
Interplanetary Monitoring Platform I
(IMP-1)
Date of launch (range):
March 13, 1971 (ETR)
Launch vehicle:
Delta E
Shape:
16-sided (drum-shaped)
Weight (kg):
288
Dimensions (m):
1.3, diameter
1.8, overall height
Power source:
Solar arrays plus AgCd battery
Prime contractor:
in-house
Date of reentry:
Oct. 2, 1974
Responsible NASA center:
GSFC
Project manager:
Butler
Project scientist:
McDonald
Objectives:
To obtain adequate particle and
fields data to allow continuation and extension of studies
of the cislunar environment during a period of decreasing
solar activity.
Experiments (responsible
organization):
.
cosmic ray, 2 (GSFC; University of
Chicago)
low-energy particles (University of
Iowa)
medium-energy particles (University
of California)
solar protons (Applied Physics
Laboratory, Johns Hopkins, and GSFQ
solar electrons (University of Denver
and GSFQ plasma, 2 (GSFC; Atomic Energy Commission)
DC electric fields (GSFQ
AC electric fields (University of
Iowa)
electric and magnetic fields (Univ.
of Minnesota)
magnetic fields (GSFQ
Impedance probe and radiometer (Univ.
of Maryland and GSFQ
Radiometer (Univ. of Michigan)
SDP-3 computer (GSFC)
Results:
Successful.
Reference: MOR S-861-71-08, March 1, 1971.