F1305-1640 Scan 190


Observing log information

  Object:           F1305-1640
  On scan num:      190 192 194
  Off scan num:     191 193 195
  R.A.:             13.148589 hrs
  Dec.:             30.582182 deg
  On azimuth:       283.794792 deg
  On zenith dist.:  57.238072 deg
  Off azimuth:      285.871524 deg
  Off zenith dist.: 58.268996 deg
  MJD:              52740
  UTC:              0.409063
  Center freq.:     1388.776023 MHz
  Doppler:          -0.00002564
  Num. correlators: 2
  Spectrom. atten.: 38 40 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 780 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