14+13-3 Scan 274


Observing log information

  Object:           14+13-3
  On scan num:      274 276 278 280 282 284
  Off scan num:     275 277 279 281 283 285
  R.A.:             0.015510 hrs
  Dec.:             -41.147907 deg
  On azimuth:       178.486961 deg
  On zenith dist.:  79.454148 deg
  Off azimuth:      178.451622 deg
  Off zenith dist.: 79.455439 deg
  MJD:              52621
  UTC:              0.986204
  Center freq.:     1418.401404 MHz
  Doppler:          -0.00007878
  Num. correlators: 2
  Spectrom. atten.: 27 36 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1740 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 1 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum