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20220920 - Latest Filament data
Available data for 20220920: »05 UTC   »06 UTC   »07 UTC   »08 UTC   »09 UTC   »10 UTC   »11 UTC   »12 UTC  
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  Color  xc   yc  (LatLon LCarr)  Area Length Branches (  x0/y0     x1/y1  )  Tilt Location
      1  535 1646 (N61E25 L=251)   362     71        0 ( 515/1614- 564/1672)  38.7 E27-E20 N58-N62
      2 1647 1589 (N19W64 L=340)   639    113        1 (1629/1534-1662/1636)  24.4 W58-W70 N16-N21
      3  442 1596 (N60E39 L=238)   460     42        1 ( 422/1566- 464/1622)  63.4 E43-E35 N56-N61
      4 1905 1188 (S11W70 L=346)   616     25        0 (1891/1162-1919/1213)  63.4 W67-W73 S12-S09
      5  337  715 (N04E53 L=223)   334     73        0 ( 307/ 696- 358/ 749)  18.4 E56-E50 N03-N05
      6 1432  587 (S30W14 L=290)   445    122        2 (1376/ 555-1479/ 620)  -7.1 W09-W17 S31-S28
      7  431  394 (S18E63 L=213)   880    104        2 ( 387/ 355- 466/ 437) -59.0 E66-E60 S20-S14
  
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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