pro show_obs, structure
;
;+
;
; Name: show_obs
;
; Purpose: show image start times by sequence#
;
; Input Parameters:
;    structure - roadmap or sxt.index with tag=seq_num
;
; History: slf, 6/91
;
;-
;
usersym,[0,0],[-1.5,1.5]
ors=indgen(max(structure.seq_num)+1)
ors=structure(uniq(structure.seq_num,sort(structure.seq_num))).seq_num

plot, time_scale(structure,t0=t0, /init),structure.seq_num, xstyle=13, $
	ystyle=8, psym=8, title='Image Start Times!c', $
	yrange=[min(structure.seq_num)-1, $
	        max(structure.seq_num)+1], $
        ; ytickname=[string(ors)],	$
	yticklen=-.01,$ 
	ytickv=ors, $ ; ytickname=[string(ors)], $
	yticks=n_elements(ors)+2, $
	ytitle='Sequence Number', xmargin=[13,3],ymargin=[4,4]
;
taxis,gentimes({time_struct},structure); , scale=scale
return
end