Hard X-Ray HIMSEL Format Data

Description

This data set consists of data from the Hard X-ray Imaging Spectrometer (HXIS) on binary tape created on a PDP computer. The number of image files on a tape is restricted to a maximum of 32,767, but physically this number is not likely to be attained. An image is designated by its image number and its file number (e.g., 400/3 indicates image 400 of file 3). The files are preceded by a label of 256 words followed by a tape mark (EOF). A label contains file ID, tape ID, tape number, file number, record number, image number, date, etc. If no files exist, a second tape mark (EOT) is added. The files are separated by one tape mark (EOF), while the last file is closed by two tape marks (EOT). Each image consists of two record blocks of 1920 words each. For further information on the main data base and this data set, contact Dr. C. deJager, Space Science Laboratory, Beneluxlaan 21, Utrecht, The Netherlands.