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20170501 - Latest Filament data
Available data for 20170501: »06 UTC   »07 UTC   »08 UTC   »09 UTC   »10 UTC   »11 UTC   »12 UTC   »13 UTC   »14 UTC  
Click on image to open sensitive map! 
 
  Color  xc   yc  (LatLon LCarr)  Area Length Branches (  x0/y0     x1/y1  )  Tilt Location
      1 1680  889 (N06W44 L= 18)   442    114        0 (1638/ 848-1711/ 923) -15.9 W40-W47 N04-N07
      2  344  625 (S46E42 L=292)   615     66        2 ( 312/ 596- 384/ 652)  -8.1 E45-E37 S47-S43
      3 1327  491 (S26W35 L=  9)   398    102        1 (1304/ 457-1355/ 538) -33.7 W31-W38 S27-S23
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» All Filament Data of 20170501 ... 		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

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