IBEX-Hi Direct Events

Each record captures the characteristics of
one energetic neutral atom arriving at IBEX-Hi. Included is a
time tag (seconds since 00:00 UT of January 6, 1980), an arrival
direction (R.A. and Dec. in J2000 celestial coordinates), the IBEX
location, ENA energy band and coincidence type. Positive species
identifications are not made, but most arriving ENA's are hydrogen
atoms. Data files are given for each 8-day orbit and for each
of the 6 IBEX-Hi energy bands. The data files are in ASCII.

每条记录均记录了一个抵达IBEX-Hi的高能中性原子（energetic neutral atom）的各项特征。记录包含时间标签（以1980年1月6日世界时（UT）00:00为基准的秒数）、抵达方向（采用J2000天球坐标系下的赤经（R.A.）与赤纬（Dec.））、IBEX探测器位置、高能中性原子能段以及符合类型。未对粒子种类进行确定性识别，但绝大多数抵达的高能中性原子均为氢原子。数据集按每8天轨道周期以及IBEX-Hi的6个能段分别提供数据文件，所有数据文件均采用ASCII格式存储。