UGC01720 Scan 2069

Contents

Observing log information

  Object:           UGC01720
  On scan num:      2069 2071 2073
  Off scan num:     2070 2072 2074
  R.A.:             2.234897 hrs
  Dec.:             5.173891 deg
  On azimuth:       165.823864 deg
  On zenith dist.:  33.932000 deg
  Off azimuth:      165.793949 deg
  Off zenith dist.: 33.935437 deg
  MJD:              52598
  UTC:              0.127523
  Center freq.:     1378.502409 MHz
  Doppler:          -0.00004216
  Num. correlators: 2
  Spectrom. atten.: 38 34 dB
  Bandwidth:         5.0 MHz
  Num. channels:    1024
  Eff. integration: 900 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