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NIC upper limit¬(point source)

Last-modified: 2014-07-07 () 22:50:00 (2761d)
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NIC upper limitη

  • WCSΤäѰդ
  • 1.ds9 Search for Catalog 򥯥å
    "Name or Designation"  "2MASS"ϤʲΥ
     II/246 | 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
     Retrive򥯥åȡΥꥹȤɽ졢2MASS source˰Ĥ
     File - Save - Starbase ǥͤ¸(¸եds9.catȤ)
  • 4. ra decΤߤФơ"#"ä
     cat ds9.cat | awk '($1 !~ "#" && $1 !~ "_" && $1 !~ "---"){print $1,$2}' > 2mass_radec.dat
  • 5. ƲwcsȺɸбդơɸե
    sky2xy jGRB140705A_01.cmw.fits @2mass_radec.dat | awk '{print $5,$6}'> 2mass_xy.j01.dat
    ٤ƤβˤƹԤ
    
  • 6. IRAF/phot¬(ap, skyvalueimstat¬ͤȤ)
    phot jGRB140705A_01.cmw.fits coord=2mass_xy.h01.dat ap=23.4 annulus=5 dannulus=5 cbox=5 readnoise=50 epadu=9.2 skyvalue=145 interac- verify- 
    pdump jGRB140705A_01.cmw.fits.mag.1  id,flux,area,epadu,stdev,nsky,mag,merr yes > j01.mag
     
  • 7. flu error׻
    error = sqrt (flux / epadu + area * stdev**2 + area**2 * stdev**2 / nsky)