Physics
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jhatd...8..318b&link_type=abstract
Johns Hopkins APL Technical Digest (ISSN 0270-5214), vol. 8, July-Sept. 1987, p. 318-323. DNA-supported research.
Physics
Aeronomy, Auroras, Birkeland Currents, Geomagnetism, Ionospheric Currents, Scientific Satellites, Magnetic Fields, Magnetometers, Solar Wind, Space Plasmas, Ultraviolet Radiation
Scientific paper
The objectives and the instrumentation of the Polar BEAR magnetic field experiment are described along with the preliminary results from simultaneous measurements of Birkeland currents and UV auroral emissions. The experiment consists of an integrated sensor head, analog electronics, and digital electronics. The sensor head is a single unit containing sensor windings for each of the three orthogonal axes, oriented parrallel to the spacecraft coordinates; to minimize interference from spacecraft-generated magnetic fields, the sensor unit is located at the end of the +y solar panel. The digital electronics package is essentially identical to that flown on HILAT. A signal processor digitizes the analog outputs of the three orthogonal axes of the flux-gate magnetometer to a 13-bit resolution, yielding a magnetic field range of + or - 63,000 nT and a resolution of 15.2 nT. The full-resolution magnetic field values are recovered by data processing techniques on the ground.
Bythrow Peter F.
Mobley Frederick F.
Potemra Thomas A.
Scheer Leonard
Zanetti Lawrence J.
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