;+
; NAME:
;     GET_SRSP_TL_STRUCT
; PURPOSE:
;     Define structure necessary for holding information from SRSP
;     time/label field.
; CATEGORY:
;     SRSP APC DATA ANALYSIS
; CALLING SEQUENCE:
;     tl_struct = get_srsp_tl_struct()
; INPUTS:
; OPTIONAL (KEYWORD) INPUT PARAMETERS:
; ROUTINES CALLED:
; OUTPUTS:
;     tl_struct   an empty time/label field structure
; COMMENTS:
; SIDE EFFECTS:
; RESTRICTIONS:
; MODIFICATION HISTORY:
;     Written 13-May-2001 by Dale E. Gary
;-
function get_srsp_tl_struct

   ; Define the TLFIELD structure

   tl_struct = {tlfield, nrc:0,  $; Current sequential record number (modifiable)
                    scancode:0,  $; Scan type code (see scan_decode function)
                 segmentcode:0,  $; Segment type code (see seg_decode function)
                        year:0,  $; Year (e.g. 1999)
                         day:0,  $; Day number
                        msec:0L, $; UTC milliseconds in day
                        date:' ',$; String representing yyyy/mm/dd
                       yrday:' ',$; String representing yyyy.ddd
                      timstr:' ',$; String representing hh:mm:ss
                     weather: 0L,$; Weather word (not used)
                          pa: 0L} ; Position angle of feed, in millidegrees
return,tl_struct
end