04043+3819 Scan 794


Observing log information

  Object:           04043+3819
  On scan num:      794 796 798 800 802 804
  Off scan num:     795 797 799 801 803 805
  R.A.:             4.133208 hrs
  Dec.:             38.453074 deg
  On azimuth:       283.419341 deg
  On zenith dist.:  32.497029 deg
  Off azimuth:      283.272727 deg
  Off zenith dist.: 32.167657 deg
  MJD:              52244
  UTC:              0.313877
  Center freq.:     1403.082750 MHz
  Doppler:          -0.00000450
  Num. correlators: 2
  Spectrom. atten.: 33 39 dB
  Bandwidth:        40.0 MHz
  Num. channels:    1024
  Eff. integration: 1620 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 5 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum