2202+4205 Scan 2


Observing log information

  Object:           2202+4205
  On scan num:      2 4
  Off scan num:     3 5
  R.A.:             22.169756 hrs
  Dec.:             42.327158 deg
  On azimuth:       70.084670 deg
  On zenith dist.:  28.268457 deg
  Off azimuth:      70.385123 deg
  Off zenith dist.: 26.248305 deg
  MJD:              52394
  UTC:              0.434444
  Center freq.:     1400.278173 MHz
  Doppler:          0.00004473
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 480 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