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20250521 - Filament data for 12 UTC
Available data for 20250521: »12 UTC   »13 UTC  
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  Color  xc   yc  (LatLon LCarr)  Area Length Branches (  x0/y0     x1/y1  )  Tilt Location
      1  998 1877 (N56E35 L=348)   442     59        2 ( 964/1860-1031/1891)  59.0 E37-E32 N53-N58
      2  349 1551 (N16E63 L=320)   514     76        3 ( 310/1530- 378/1581)  31.0 E68-E60 N14-N18
      3  380 1512 (N14E57 L=327)   469     69        2 ( 355/1483- 410/1538)  45.0 E59-E54 N12-N15
      4  217 1134 (S11E59 L=324)   537     91        1 ( 192/1096- 241/1178)  90.0 E62-E57 S13-S07
      5 1550 1102 (N13W31 L= 54)   243     58        0 (1526/1081-1568/1127)  63.4 W29-W32 N11-N15
      6 1242  966 (S01W14 L= 37)   523    234        0 (1190/ 881-1307/1064)  76.0 W11-W15 S06-N06
      7  306  916 (S22E47 L=336)  1192    362        4 ( 235/ 762- 416/1020)  51.7 E55-E38 S33-S14
      8 1484  778 (S07W33 L= 57)   524    163        0 (1420/ 728-1540/ 826)  58.0 W30-W35 S10-S02
      9  268  634 (S42E56 L=327)   800    113        0 ( 219/ 601- 326/ 656)  13.4 E68-E47 S45-S39
Download Binary data for this image

» All Filament Data of 20250521 ... 		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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