LVM198. Scan 4448


Observing log information

  Object:           LVM198.
  On scan num:      4448 4450 4452 4454 4456 4458
  Off scan num:     4449 4451 4453 4455 4457 4459
  R.A.:             7.569845 hrs
  Dec.:             46.510769 deg
  On azimuth:       421.074026 deg
  On zenith dist.:  35.944440 deg
  Off azimuth:      421.069381 deg
  Off zenith dist.: 35.978723 deg
  MJD:              52534
  UTC:              0.411678
  Center freq.:     1376.323453 MHz
  Doppler:          0.00008380
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1320 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 16 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum