Limb Brightening

Description

These experimenter-supplied, limb brightening data are on binary magnetic tape created on a PDP 11/34 computer. The tapes are multifiled, with each file containing a seven-word header of Radix-50 title information for internal PDP use followed by an experiment header record and a variable number of logical header records and data records of 1024 bytes each. The experiment header record contains tape and experiment identification information, date and orbit number, and satellite position. A logical header record precedes each data record. It contains the dimension of the logical data array of the date record, wavelength information, time at start of record, absolute and differential temperatures, gate time, true spacecraft mode, calculated actual azimuth and elevation (for raster experiments only), and experiment type. Each data record contains an array of one of the following three experiment types: (1) limb brightening (observation of a line profile repeated fewer than 64 times at each preselected position on the disk or above the limb), (2) detailed limb brightening (identical to limb brightening except the user is allowed to observe up to 1024 data points per line profile instead of up to 64), and (3) limb brightening, multiple line profile (observation of up to eight line profiles at positions on the disk and above the limb). Data reduction programs for data analysis are contained on data set -01I. For more information on this data set, contact Dr. Charles Barth, Laboratory for Atmospheric and Space Physics, Campus Box 392, University of Colorado, Boulder, CO 80309.