1826+2242 Scan 349


Observing log information

  Object:           1826+2242
  On scan num:      349 351 353
  Off scan num:     350 352 354
  R.A.:             18.473405 hrs
  Dec.:             22.735351 deg
  On azimuth:       243.929075 deg
  On zenith dist.:  28.013303 deg
  Off azimuth:      243.897260 deg
  Off zenith dist.: 27.995392 deg
  MJD:              52265
  UTC:              0.811713
  Center freq.:     1400.821826 MHz
  Doppler:          -0.00001054
  Num. correlators: 2
  Spectrom. atten.: 33 40 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