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20210217 - Filament data for 09 UTC
Available data for 20210217: »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  236  688 (S41E61 L=315)   576     58        1 ( 216/ 655- 261/ 721)  21.8 E66-E56 S42-S38
      2 1042  470 (S39W15 L= 31)   221     30        0 (1030/ 449-1059/ 498) -45.0 W13-W17 S40-S37
      3 1144  389 (S42W27 L= 43)   643    113        0 (1116/ 343-1177/ 445) -36.9 W23-W32 S44-S38
      4 1307  359 (S40W41 L= 57)   467     59        1 (1264/ 344-1347/ 377)  15.9 W37-W44 S41-S37
Download Binary data for this image

» All Filament Data of 20210217 ... 		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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