CIG488 Scan 561


Observing log information

  Object:           CIG488
  On scan num:      561 563 565 567 569 571
  Off scan num:     562 564 566 568 570 572
  R.A.:             11.594815 hrs
  Dec.:             73.451925 deg
  On azimuth:       380.685949 deg
  On zenith dist.:  53.619867 deg
  Off azimuth:      380.680490 deg
  Off zenith dist.: 53.637979 deg
  MJD:              52785
  UTC:              0.772789
  Center freq.:     1393.251843 MHz
  Doppler:          -0.00004202
  Num. correlators: 2
  Spectrom. atten.: 0 0 dB
  Bandwidth:        50.0 MHz
  Num. channels:    8192
  Eff. integration: 1770 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 2 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum