LVM325. Scan 12


Observing log information

  Object:           LVM325.
  On scan num:      12 14 16 18 20 22
  Off scan num:     13 15 17 19 21 23
  R.A.:             9.313158 hrs
  Dec.:             61.079160 deg
  On azimuth:       9.406823 deg
  On zenith dist.:  23.077147 deg
  Off azimuth:      9.446472 deg
  Off zenith dist.: 23.081235 deg
  MJD:              52490
  UTC:              0.717199
  Center freq.:     1384.304855 MHz
  Doppler:          0.00001556
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1680 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 4 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum