Sculptor Scan 1517

Contents

Observing log information

  Object:           Sculptor
  On scan num:      1517
  Off scan num:     1518
  R.A.:             1.001202 hrs
  Dec.:             -33.714050 deg
  On azimuth:       176.512682 deg
  On zenith dist.:  72.111354 deg
  Off azimuth:      176.476139 deg
  Off zenith dist.: 72.113484 deg
  MJD:              52546
  UTC:              0.229086
  Center freq.:     1419.442383 MHz
  Doppler:          -0.00001160
  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