LVM745. Scan 762


Observing log information

  Object:           LVM745.
  On scan num:      762 764 766 768 770 772
  Off scan num:     763 765 767 769 771 773
  R.A.:             16.495253 hrs
  Dec.:             67.485110 deg
  On azimuth:       332.392111 deg
  On zenith dist.:  55.595900 deg
  Off azimuth:      332.384291 deg
  Off zenith dist.: 55.576069 deg
  MJD:              52513
  UTC:              0.231690
  Center freq.:     1385.315108 MHz
  Doppler:          -0.00000288
  Num. correlators: 2
  Spectrom. atten.: 37 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1740 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

Edited spectrum

This spectrum is the same as Figure 1 but with 2 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum