N04848 Scan 307


Observing log information

  Object:           N04848
  On scan num:      307
  Off scan num:     308
  R.A.:             12.968259 hrs
  Dec.:             28.245003 deg
  On azimuth:       266.681801 deg
  On zenith dist.:  36.394040 deg
  Off azimuth:      266.653340 deg
  Off zenith dist.: 36.361338 deg
  MJD:              52265
  UTC:              0.624688
  Center freq.:     1386.998616 MHz
  Doppler:          0.00008537
  Num. correlators: 2
  Spectrom. atten.: 24 28 dB
  Bandwidth:        10.0 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