08509-1504 Scan 650

Contents

Observing log information

  Object:           08509-1504
  On scan num:      650 652 654 656 658 660 662 664 666 668 670 672
  Off scan num:     651 653 655 657 659 661 663 665 667 669 671 673
  R.A.:             8.848344 hrs
  Dec.:             -15.066318 deg
  On azimuth:       188.562742 deg
  On zenith dist.:  53.817276 deg
  Off azimuth:      188.468831 deg
  Off zenith dist.: 53.808176 deg
  MJD:              52242
  UTC:              0.418819
  Center freq.:     1395.387535 MHz
  Doppler:          0.00008172
  Num. correlators: 2
  Spectrom. atten.: 33 38 dB
  Bandwidth:        20.0 MHz
  Num. channels:    1024
  Eff. integration: 3480 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 4 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum