LVM644. Scan 104


Observing log information

  Object:           LVM644.
  On scan num:      104 106 108 110
  Off scan num:     105 107 109 111
  R.A.:             14.824903 hrs
  Dec.:             43.580411 deg
  On azimuth:       304.629281 deg
  On zenith dist.:  61.174449 deg
  Off azimuth:      305.680371 deg
  Off zenith dist.: 62.929375 deg
  MJD:              52422
  UTC:              0.390579
  Center freq.:     1382.223430 MHz
  Doppler:          -0.00004207
  Num. correlators: 2
  Spectrom. atten.: 37 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 960 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 7 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum