0256+3637 Scan 37


Observing log information

  Object:           0256+3637
  On scan num:      37 39 41
  Off scan num:     38 40 42
  R.A.:             2.999642 hrs
  Dec.:             36.820608 deg
  On azimuth:       298.235128 deg
  On zenith dist.:  64.782836 deg
  Off azimuth:      298.212330 deg
  Off zenith dist.: 64.748518 deg
  MJD:              52510
  UTC:              0.657685
  Center freq.:     1403.531069 MHz
  Doppler:          0.00009089
  Num. correlators: 2
  Spectrom. atten.: 40 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 840 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