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20210217 - Filament data for 12 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  243  685 (S41E60 L=314)   648     69        0 ( 222/ 643- 265/ 725)  33.7 E65-E55 S43-S37
      2 1067  458 (S40W18 L= 32)   251     74        0 (1048/ 434-1099/ 490) -31.0 W15-W21 S40-S37
      3 1158  383 (S42W28 L= 42)   656    108        1 (1124/ 334-1191/ 437) -36.9 W24-W33 S44-S38
      4 1319  351 (S40W43 L= 57)   482     73        0 (1272/ 339-1362/ 366)  14.0 W38-W46 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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