NGC1022 Scan 849


Observing log information

  Object:           NGC1022
  On scan num:      849 851 853
  Off scan num:     850 852 854
  R.A.:             2.642509 hrs
  Dec.:             -6.674706 deg
  On azimuth:       191.047633 deg
  On zenith dist.:  45.600174 deg
  Off azimuth:      191.012927 deg
  Off zenith dist.: 45.596607 deg
  MJD:              52496
  UTC:              0.466829
  Center freq.:     1413.680540 MHz
  Doppler:          0.00008898
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 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