LVM649. Scan 110


Observing log information

  Object:           LVM649.
  On scan num:      110 112 114 116 118 120
  Off scan num:     111 113 115 117 119 121
  R.A.:             14.807160 hrs
  Dec.:             41.639188 deg
  On azimuth:       288.217719 deg
  On zenith dist.:  27.779680 deg
  Off azimuth:      288.210673 deg
  Off zenith dist.: 27.745531 deg
  MJD:              52352
  UTC:              0.447095
  Center freq.:     1394.257148 MHz
  Doppler:          0.00002111
  Num. correlators: 2
  Spectrom. atten.: 43 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1680 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 4 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum