F1525-4969 Scan 79


Observing log information

  Object:           F1525-4969
  On scan num:      79 81 83 85 87 89
  Off scan num:     80 82 84 86 88 90
  R.A.:             15.439699 hrs
  Dec.:             29.197016 deg
  On azimuth:       276.755487 deg
  On zenith dist.:  47.459404 deg
  Off azimuth:      276.730861 deg
  Off zenith dist.: 47.423409 deg
  MJD:              52421
  UTC:              0.342245
  Center freq.:     1373.355349 MHz
  Doppler:          -0.00003141
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1740 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 2 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum