Sagittarius Scan 714


Observing log information

  Object:           Sagittarius
  On scan num:      714
  Off scan num:     715
  R.A.:             18.917873 hrs
  Dec.:             -30.478217 deg
  On azimuth:       191.454597 deg
  On zenith dist.:  69.771423 deg
  Off azimuth:      191.416613 deg
  Off zenith dist.: 69.764561 deg
  MJD:              52504
  UTC:              0.136678
  Center freq.:     1419.363104 MHz
  Doppler:          -0.00006746
  Num. correlators: 2
  Spectrom. atten.: 37 37 dB
  Bandwidth:         5.0 MHz
  Num. channels:    1024
  Eff. integration: 300 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