Heavy ion observation with MIDORI satellite: trapped ACR

摘要

The Heavy Ion Telescope (HIT) on board the Japanese earth observation satellite MIDORI (ADEOS) has observed energetic heavy ions at the circular sun-synchronous orbit with an altitude of 800 km and an inclination of 98 degrees. Geomagnetically trapped oxygen and nitrogen at L = 2 are clearly observed which is similar to the results of SAMPEX. Their geographical distribution at a long belt from the southern tip of South America to that of Africa is also very close to the SAMPEX observation. The adiabaticity parameter epsilon(max) can be deduced as less than or equal to 0.1. (C) 1999 Elsevier Science Ltd. All rights reserved. [References: 14]