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20210610 - Latest Filament data
Available data for 20210610: »06 UTC   »07 UTC   »10 UTC   »11 UTC   »12 UTC   »13 UTC  
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  Color  xc   yc  (LatLon LCarr)  Area Length Branches (  x0/y0     x1/y1  )  Tilt Location
      1  969 1713 (N46E18 L=304)   300     58        1 ( 941/1693- 997/1739) -26.6 E20-E14 N44-N47
      2 1209 1399 (N26W07 L=329)   484    216        0 (1184/1301-1259/1462)  85.2 W04-W09 N19-N31
      3 1037  285 (S50W17 L=339)   887    172        1 ( 990/ 259-1102/ 329) -18.4 W10-W22 S52-S46
  
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IDL code for reading binary data:
    OPENR, u, binfile, /COMP, /GET_LUN
    head = FLTARR(6) ;[xsize,ysize,radius,hh,mm,ss]
    READU, u, head
    data = INTARR(FIX(head[0]),FIX(head[1]))
    READU, u, data
    FREE_LUN, u
    
  • each filament has the value of Fil_ID
  • all values are in pixel
to get the area of a filament:
  c = WHERE(data EQ Fil_ID, area)
  f = '(2(A,I6))'
  PRINT, FORM=f, "Area of Fil_ID", Fil_ID," =", area 
be careful: y-origin is upper left! you can transpose the data:
  data = ROTATE(data,7)
  Solar_y = 2048-Solar_y