22509-0040 Scan 968

Contents

Observing log information

  Object:           22509-0040
  On scan num:      968 970 972 974 976 978 980 982 984 986 988 990
  Off scan num:     969 971 973 975 977 979 981 983 985 987 989 991
  R.A.:             22.848347 hrs
  Dec.:             -0.666484 deg
  On azimuth:       191.054812 deg
  On zenith dist.:  39.525257 deg
  Off azimuth:      191.028116 deg
  Off zenith dist.: 39.522595 deg
  MJD:              52244
  UTC:              0.994722
  Center freq.:     1342.353318 MHz
  Doppler:          -0.00010005
  Num. correlators: 2
  Spectrom. atten.: 35 41 dB
  Bandwidth:        20.0 MHz
  Num. channels:    1024
  Eff. integration: 3420 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