N7738 Scan 505


Observing log information

  Object:           N7738
  On scan num:      505 507 509
  Off scan num:     506 508 510
  R.A.:             23.733884 hrs
  Dec.:             0.516167 deg
  On azimuth:       222.176846 deg
  On zenith dist.:  46.247644 deg
  Off azimuth:      222.141961 deg
  Off zenith dist.: 46.231983 deg
  MJD:              52279
  UTC:              0.997014
  Center freq.:     1388.900172 MHz
  Doppler:          -0.00009608
  Num. correlators: 2
  Spectrom. atten.: 33 40 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 600 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 10 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum