N1275_M Scan 130


Observing log information

  Object:           N1275_M
  On scan num:      130 132 134
  Off scan num:     131 133 135
  R.A.:             3.330033 hrs
  Dec.:             41.512254 deg
  On azimuth:       299.763629 deg
  On zenith dist.:  57.246445 deg
  Off azimuth:      299.744614 deg
  Off zenith dist.: 57.212033 deg
  MJD:              52343
  UTC:              0.108426
  Center freq.:     1395.772801 MHz
  Doppler:          -0.00008793
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 900 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