LVM182. Scan 4606


Observing log information

  Object:           LVM182.
  On scan num:      4606 4608 4610 4612 4614 4616
  Off scan num:     4607 4609 4611 4613 4615 4617
  R.A.:             7.198531 hrs
  Dec.:             49.685763 deg
  On azimuth:       415.617537 deg
  On zenith dist.:  37.130601 deg
  Off azimuth:      415.616030 deg
  Off zenith dist.: 37.162950 deg
  MJD:              52540
  UTC:              0.374132
  Center freq.:     1374.803668 MHz
  Doppler:          0.00008687
  Num. correlators: 2
  Spectrom. atten.: 35 39 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1500 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 9 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum