Arp296 Scan 19


Observing log information

  Object:           Arp296
  On scan num:      19
  Off scan num:     20
  R.A.:             11.480039 hrs
  Dec.:             58.577145 deg
  On azimuth:       33.800591 deg
  On zenith dist.:  64.766879 deg
  Off azimuth:      33.782218 deg
  Off zenith dist.: 64.792176 deg
  MJD:              52599
  UTC:              0.239942
  Center freq.:     1397.196784 MHz
  Doppler:          0.00006598
  Num. correlators: 2
  Spectrom. atten.: 38 37 dB
  Bandwidth:        40.0 MHz
  Num. channels:    1024
  Eff. integration: 120 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 6 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum