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20210817 - Latest Filament data
Available data for 20210817: »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  774 1605 (N49E07 L=135)   315     49        1 ( 744/1587- 803/1626) -18.4 E10-E04 N46-N50
      2 1524 1522 (N26W47 L=190)   445    149        0 (1469/1493-1590/1566) -49.4 W44-W51 N22-N29
      3 1659 1378 (N14W51 L=194)   472     73        0 (1618/1354-1697/1400) -26.6 W48-W54 N12-N16
      4 1536  380 (S49W31 L=173)   519     45        0 (1499/ 365-1566/ 397) -18.4 W25-W34 S51-S46
Download Binary data for this image

» All Filament Data of 20210817 ... 		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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