LocalGroupCent Scan 49

Contents

Observing log information

  Object:           LocalGroupCent
  On scan num:      49
  Off scan num:     50
  R.A.:             10.949074 hrs
  Dec.:             50.122450 deg
  On azimuth:       403.312684 deg
  On zenith dist.:  66.912340 deg
  Off azimuth:      403.292144 deg
  Off zenith dist.: 66.941379 deg
  MJD:              52550
  UTC:              0.365706
  Center freq.:     1419.540710 MHz
  Doppler:          0.00005768
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:         5.0 MHz
  Num. channels:    1024
  Eff. integration: 300 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