LVM865. Scan 673


Observing log information

  Object:           LVM865.
  On scan num:      673 675 677 679 681 683
  Off scan num:     674 676 678 680 682 684
  R.A.:             18.961669 hrs
  Dec.:             58.550124 deg
  On azimuth:       325.379340 deg
  On zenith dist.:  63.637827 deg
  Off azimuth:      325.360369 deg
  Off zenith dist.: 63.609595 deg
  MJD:              52503
  UTC:              0.390301
  Center freq.:     1384.985649 MHz
  Doppler:          -0.00000327
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1200 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 20 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum