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20210421 - Filament data for 12 UTC
Available data for 20210421: »06 UTC   »07 UTC   »08 UTC   »09 UTC   »10 UTC   »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 1508 1619 (N48W16 L=279)   847     99        2 (1455/1595-1561/1639)  20.0 W10-W21 N44-N50
      2 1712 1467 (N44W39 L=302)   622     86        0 (1673/1448-1756/1481)  22.6 W33-W45 N41-N47
      3 1000  611 (S29W11 L=275)   554    216        0 ( 894/ 590-1097/ 636)  17.1 W04-W17 S31-S26
      4  362  541 (S54E44 L=220)  1910    226        4 ( 245/ 509- 455/ 578)   5.7 E70-E30 S57-S50
Download Binary data for this image

» All Filament Data of 20210421 ... 		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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