U11012x Scan 784


Observing log information

  Object:           U11012x
  On scan num:      784
  Off scan num:     785
  R.A.:             17.823981 hrs
  Dec.:             70.145169 deg
  On azimuth:       341.816834 deg
  On zenith dist.:  64.095507 deg
  Off azimuth:      341.799392 deg
  Off zenith dist.: 64.078870 deg
  MJD:              52504
  UTC:              0.400579
  Center freq.:     1420.169746 MHz
  Doppler:          0.00000391
  Num. correlators: 2
  Spectrom. atten.: 37 37 dB
  Bandwidth:         5.0 MHz
  Num. channels:    1024
  Eff. integration: 300 seconds

Raw spectrum

This spectrum is the integration of all data for the scan with spectra from both polarizations added together. The spectral intensities are Ssys * (on - off) / off, where Ssys is the system temperature in Jy. The system noise flux density equivalent is calibrated for each scan with a calibration noise source firing during each scan. The cal value, in Jy, is calibrated by comparison with a number of continuum sources as described in the summary web page

Figure 1. Unedited spectrum