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Title: An overview of the solar, anomalous, and magnetospheric particle explorer (SAMPEX) mission

The scientific objective of the NASA Small-class Explorer Mission SAMPEX are summarized. A brief history of the Small Explorer program is provided along with a description of the SAMPEX project development and structure. The spacecraft and scientific instrument configuration is presented. The orbit of SAMPEX has an altitude of 520 by 670 km and an 82[degree] inclination. Maximum possible power is provided by articulated solar arrays that point continuously toward the sun. Highly sensitive science instruments point generally toward the local zenith, especially over the terrestrial poles, in order to measure optimally the galactic and solar cosmic ray flux. Energetic magnetospheric particle precipitation is monitored at lower geomagnetic latitudes. The spacecraft uses several innovative approaches including an optical fiber bus, powerful onboard computers, and large solid state memories (instead of tape recorders). Spacecraft communication and data acquisition are discussed and the space- and ground-segment data flows are summarized. A mission lifetime of 3 years is sought with the goal of extending data acquisition over an even longer portion of the 11-year solar activity cycle.
Authors:
 [1] ;  [2] ; ; ; ;  [3]
  1. (NASA/Goddard Space Flight Center, Greenbelt, MD (United States). Lab. for Extraterrestrial Physics)
  2. (Univ. of Maryland, College Park, MD (United States). Dept. of Physics)
  3. (NASA/Goddard Space Flight Center, Greenbelt, MD (United States). Engineering Directorate)
Publication Date:
OSTI Identifier:
5638784
Resource Type:
Journal Article
Resource Relation:
Journal Name: IEEE Transactions on Geoscience and Remote Sensing (Institute of Electrical and Electronics Engineers); (United States); Journal Volume: 31:3
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; EARTH MAGNETOSPHERE; RESEARCH PROGRAMS; EXPLORER SATELLITES; CHARGED-PARTICLE PRECIPITATION; COMMUNICATIONS; DATA ACQUISITION; MONITORING; POWER SUPPLIES; SERVICE LIFE; SOLAR ACTIVITY; SOLAR CELL ARRAYS; EARTH ATMOSPHERE; ELECTRONIC EQUIPMENT; EQUIPMENT; LIFETIME; SATELLITES; SOLAR EQUIPMENT 661320* -- Auroral, Ionospheric, & Magnetospheric Phenomena-- (1992-)