UGC08929 Scan 2


Observing log information

  Object:           UGC08929
  On scan num:      2 4 6 8
  Off scan num:     3 5 7 9
  R.A.:             14.018956 hrs
  Dec.:             21.240075 deg
  On azimuth:       268.426313 deg
  On zenith dist.:  52.340393 deg
  Off azimuth:      268.397132 deg
  Off zenith dist.: 52.304269 deg
  MJD:              52745
  UTC:              0.398981
  Center freq.:     1383.474904 MHz
  Doppler:          -0.00000894
  Num. correlators: 2
  Spectrom. atten.: 38 40 dB
  Bandwidth:         5.0 MHz
  Num. channels:    1024
  Eff. integration: 660 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 17 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum