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20210428 - Filament data for 12 UTC
Available data for 20210428: »12 UTC   »13 UTC  
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  Color  xc   yc  (LatLon LCarr)  Area Length Branches (  x0/y0     x1/y1  )  Tilt Location
      1 1604 1470 (N40W28 L=199)   527    117        1 (1545/1452-1655/1487)  20.0 W22-W33 N37-N42
      2  390  502 (S56E41 L=130)  1529    218        5 ( 324/ 443- 462/ 567) -16.4 E51-E30 S59-S51
      3  557  436 (S55E19 L=152)   361     66        1 ( 541/ 407- 573/ 470) -68.2 E20-E16 S57-S52
  
Download Binary data for this image

» All Filament Data of 20210428 ...
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