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20170428 - Filament data for 12 UTC
Available data for 20170428: »11 UTC   »12 UTC   »13 UTC  
Click on image to open sensitive map! 
 
  Color  xc   yc  (LatLon LCarr)  Area Length Branches (  x0/y0     x1/y1  )  Tilt Location
      1 1610 1349 (N31W29 L= 44)   311     60        1 (1585/1320-1637/1383) -45.0 W26-W31 N29-N32
      2 1832 1054 (N20W53 L= 68)   644    111        1 (1799/1014-1860/1085) -14.0 W49-W57 N18-N21
      3 1721  926 (N09W46 L= 61)   295    132        0 (1675/ 890-1763/ 973)  58.0 W43-W48 N05-N13
Download Binary data for this image

» All Filament Data of 20170428 ... 		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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