LVM344. Scan 4618


Observing log information

  Object:           LVM344.
  On scan num:      4618 4620 4622 4624 4626 4628
  Off scan num:     4619 4621 4623 4625 4627 4629
  R.A.:             9.464193 hrs
  Dec.:             46.604402 deg
  On azimuth:       417.277483 deg
  On zenith dist.:  49.123692 deg
  Off azimuth:      417.264794 deg
  Off zenith dist.: 49.156731 deg
  MJD:              52540
  UTC:              0.419722
  Center freq.:     1396.912035 MHz
  Doppler:          0.00006884
  Num. correlators: 2
  Spectrom. atten.: 35 39 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1740 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 2 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum