Dynamics Explorer 1 (Explorer 62) in the bottom and Dynamics Explorer 2 (Explorer 63) in the top
Names
Explorer 63 Dynamics Explorer-B
Mission type
Space physics
Operator
NASA
COSPAR ID
1981-070B
SATCAT no.
12625
Mission duration
1 year (planned) 1.5 years (achieved)
Spacecraft properties
Spacecraft
Explorer LXIII
Spacecraft type
Dynamics Explorer
Bus
DE
Manufacturer
Goddard Space Flight Center
Launch mass
420 kg (930 lb)
Dimensions
137 cm (54 in) in diameter and 115 cm (45 in) high
Power
115 watts
Start of mission
Launch date
3 August 1981, 09:56 UTC
Rocket
Thor-Delta 3913 (Thor 642 / Delta 155)
Launch site
Vandenberg, SLC-2W
Contractor
Douglas Aircraft Company
Entered service
3 August 1981
End of mission
Decay date
19 February 1983
Orbital parameters
Reference system
Geocentric orbit[1]
Regime
Low Earth orbit
Perigee altitude
309 km (192 mi)
Apogee altitude
1,012 km (629 mi)
Inclination
89.99°
Period
98.00 minutes
Instruments
Atmospheric Dynamics and Energetics Investigation Fabry–Pérot interferometer (FPI) Ion Drift Meter (IDM) Langmuir Probe Instrument(LANG) Low Altitude Plasma Instrument (LAPI) Low Altitude Plasma Investigation High Angular Resolution Magnetic Field Observations (MAG-B) Magnetospheric Energy Coupling To The Atmosphere Investigation Neutral Atmosphere Composition Spectrometer (NACS) Neutral-Plasma Interactions Investigation Retarding Potential Analyzer (RPA) Vector Electric Field Instrument (VEFI) Wind and Temperature Spectrometer (WATS)
Explorer program
← Dynamics Explorer 1 (Explorer 62)
Solar Mesophere Explorer (Explorer 64) →
Dynamics Explorer 2 (DE-2 or Explorer 63) was a NASA low-altitude mission, launched on 3 August 1981. It consisted of two satellites, DE-1 and DE-2, whose purpose was to investigate the interactions between plasmas in the magnetosphere and those in the ionosphere. The two satellites were launched together into polar coplanar orbits, which allowed them to simultaneously observe the upper and lower parts of the atmosphere.[2]
^"Trajectory: Explorer 62 (DE-1) 1981-070A". NASA. 28 October 2021. Retrieved 23 November 2021. This article incorporates text from this source, which is in the public domain.
^"Display: Explorer 63 (DE-2) 1981-070B". NASA. 28 October 2021. Retrieved 23 November 2021. This article incorporates text from this source, which is in the public domain.
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