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20210911 - Filament data for 06 UTC
Available data for 20210911: »05 UTC   »06 UTC   »07 UTC   »08 UTC   »09 UTC   »10 UTC   »11 UTC   »12 UTC   »13 UTC   »14 UTC  
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  Color  xc   yc  (LatLon LCarr)  Area Length Branches (  x0/y0     x1/y1  )  Tilt Location
      1 1225 1717 (N42W41 L=216)   426     55        1 (1198/1682-1249/1746)  51.3 W38-W43 N39-N44
      2 1529 1618 (N26W56 L=231)   412    107        0 (1484/1592-1573/1654) -63.4 W54-W57 N23-N29
      3 1359 1556 (N28W38 L=214)   383     88        0 (1324/1531-1399/1575)  -8.1 W34-W41 N26-N29
      4  607 1463 (N44E19 L=157)  1305    299        2 ( 459/1434- 745/1505) -22.2 E34-E07 N38-N50
      5 1097 1329 (N23W12 L=188)   527    157        2 (1022/1303-1165/1371) -45.0 W08-W15 N19-N27
      6 1021  170 (S51E35 L=141)   453     17        0 (1004/ 150-1038/ 188)  45.0 E37-E31 S53-S48
  
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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