14+13-1d Scan 516


Observing log information

  Object:           14+13-1d
  On scan num:      516 518 520 522
  Off scan num:     517 519 521 523
  R.A.:             23.356708 hrs
  Dec.:             -31.905751 deg
  On azimuth:       204.824121 deg
  On zenith dist.:  75.061407 deg
  Off azimuth:      204.787014 deg
  Off zenith dist.: 75.046268 deg
  MJD:              52785
  UTC:              0.595625
  Center freq.:     1418.637971 MHz
  Doppler:          0.00008799
  Num. correlators: 2
  Spectrom. atten.: 0 0 dB
  Bandwidth:        12.5 MHz
  Num. channels:    8192
  Eff. integration: 1170 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