N04788 Scan 99

Contents

Observing log information

  Object:           N04788
  On scan num:      99 101 103 105 107 109 111 113 115 117
  Off scan num:     100 102 104 106 108 110 112 114 116 118
  R.A.:             12.904429 hrs
  Dec.:             27.303516 deg
  On azimuth:       88.172110 deg
  On zenith dist.:  44.666506 deg
  Off azimuth:      88.147168 deg
  Off zenith dist.: 44.699145 deg
  MJD:              52264
  UTC:              0.362257
  Center freq.:     1390.169336 MHz
  Doppler:          0.00008804
  Num. correlators: 2
  Spectrom. atten.: 34 40 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 2700 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 10 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum