UGC06748 Scan 90


Observing log information

  Object:           UGC06748
  On scan num:      90 92 94
  Off scan num:     91 93 95
  R.A.:             11.773410 hrs
  Dec.:             35.728308 deg
  On azimuth:       421.751798 deg
  On zenith dist.:  66.931479 deg
  Off azimuth:      421.728541 deg
  Off zenith dist.: 66.966025 deg
  MJD:              52603
  UTC:              0.289560
  Center freq.:     1397.225199 MHz
  Doppler:          0.00008632
  Num. correlators: 2
  Spectrom. atten.: 38 38 dB
  Bandwidth:        40.0 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