Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsh31a1184n&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SH31A-1184
Physics
0394 Instruments And Techniques
Scientific paper
The SWE instrument on the Wind spacecraft consists of two Faraday cups used to measure solar wind, two ion-electron spectrometers (VEIS), and an additional instrument to measure the electrons making up the "Strahl". To recover from a failure of a high voltage power supply in the year 2002, the VEIS and the Strahl instruments have been combined in a new form to measure electron phase density and pitch angle distributions. This paper describes the new data obtainable in this way. As a result of providing additional telemetry capability to the Strahl sensor, the new mode has greater time and angular resolution than the previous arrangement. The new mode is an arrangement of data taking using telemetry capacity previously allotted to the VEIS sensor. This takes 9 seconds and each spin is divided in eight sectors. Elevation (pitch angle) coverage is provided by the six Strahl detectors, at ± 26.6o, ±17.1o, \pm 7.34^°.$ These details are described in the paper, examples of the new observations are given, and details of access are provided.
Chornay Dennis
Holland Mark P.
Needell G.
Ogilvie Keith. W.
Viñas Adolfo F.
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