LVM852. Scan 784


Observing log information

  Object:           LVM852.
  On scan num:      784 786 788 790 792 794
  Off scan num:     785 787 789 791 793 795
  R.A.:             18.433521 hrs
  Dec.:             56.055090 deg
  On azimuth:       320.083794 deg
  On zenith dist.:  60.265947 deg
  Off azimuth:      320.071026 deg
  Off zenith dist.: 60.242424 deg
  MJD:              52513
  UTC:              0.314340
  Center freq.:     1383.580399 MHz
  Doppler:          -0.00001391
  Num. correlators: 2
  Spectrom. atten.: 37 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1620 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 6 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum