U06697 Scan 25


Observing log information

  Object:           U06697
  On scan num:      25 27 29 31 33
  Off scan num:     26 28 30 32 34
  R.A.:             11.730218 hrs
  Dec.:             19.970162 deg
  On azimuth:       93.424708 deg
  On zenith dist.:  52.345544 deg
  Off azimuth:      93.399947 deg
  Off zenith dist.: 52.374968 deg
  MJD:              52249
  UTC:              0.340671
  Center freq.:     1389.377264 MHz
  Doppler:          0.00009731
  Num. correlators: 2
  Spectrom. atten.: 40 63 dB
  Bandwidth:         5.0 MHz
  Num. channels:    1024
  Eff. integration: 1200 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 40 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum