PROCEDURE: load_kp PURPOSE: Loads Kp and ap data from a text file Variables stored include: Kp: Kp index (multiplied by 10) ap: ap index Sol_Rot_Num: Bartels Solar Rotation Number Sol_Rot_Day: Number of day within Bartels 27-day cycle Kp_Sum: Sum of the eight Kp indices for the day ap_Mean: Mean of the eight ap indices for the day Cp: Cp or Planetary Daily Character Figure C9: Conversion of Cp to the 0-9 range Sunspot_Number: International Sunspot Number Solar_Radio_Flux: Ottawa 10.7-cm Solar Radio Flux Adjusted to 1 AU Flux_Qualifier: "0" indicates flux required no adjustment. "1" indicates flux required adjustment for burst in progress at time of measurement. "2" indicates a flux approximated by either interpolation or extrapolation. "3" indicates no observation. INPUTS: none, but will call "timespan" if time_range is not already set. KEYWORDS: time_range: 2 element vector specifying the time range. HISTORY: CREATED BY: Peter Schroeder 2012-07-20: Jianbao Tao (JBT), SSL, UC Berkeley. 1. Added the VERSION section to the documentation comment. VERSION: $LastChangedBy$ $LastChangedDate$ $LastChangedRevision$ $URL$