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20230813 - Filament data for 08 UTC
Available data for 20230813: »06 UTC   »07 UTC   »08 UTC   »09 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 1284 1757 (N48W45 L=327)   546    114        0 (1249/1719-1334/1777)  -5.2 W39-W50 N46-N49
      2 1412 1683 (N40W49 L=332)  1249    181        4 (1360/1626-1481/1745)  84.8 W43-W52 N34-N45
      3 1672 1599 (N27W69 L=352)   517     98        0 (1635/1558-1707/1634) -71.6 W67-W70 N24-N30
      4 1373 1577 (N34W38 L=321)   532    158        1 (1335/1500-1397/1632)  63.4 W34-W40 N28-N38
      5 1299 1555 (N34W31 L=314)   304    124        0 (1276/1518-1335/1609)  81.9 W30-W33 N30-N37
      6 1630 1494 (N23W55 L=338)   480    118        4 (1575/1459-1671/1525) -29.7 W51-W59 N20-N25
      7 1604 1341 (N15W45 L=328)   368     93        3 (1567/1316-1633/1365) -53.1 W41-W47 N12-N16
      8  867 1176 (N18E07 L=275)   648    313        1 ( 731/1130-1003/1219) -31.0 E15-W00 N13-N22
      9  375 1150 (N22E44 L=239)   628    196        1 ( 328/1062- 404/1213) -63.4 E48-E41 N16-N26
     10 1807  947 (S13W54 L=337)  2955    513        2 (1728/ 715-1864/1131)  63.4 W45-W62 S27-S02
     11  774  954 (N06E16 L=267)   589    234        2 ( 709/ 851- 810/1034) -74.7 E19-E14 N00-N11
     12 1899  931 (S17W67 L=350)   976    127        2 (1860/ 881-1932/ 982)  13.0 W61-W74 S19-S15
     13 1383  891 (S07W20 L=303)   658    194        2 (1346/ 806-1426/ 965)  48.8 W16-W23 S12-S03
     14 1321  320 (S48W10 L=293)   367     87        1 (1304/ 295-1345/ 359)  51.3 W08-W12 S49-S44
  
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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