SL1145+0000 Scan 680


Observing log information

  Object:           SL1145+0000
  On scan num:      680
  Off scan num:     681
  R.A.:             11.757286 hrs
  Dec.:             0.004085 deg
  On azimuth:       188.335547 deg
  On zenith dist.:  38.636331 deg
  Off azimuth:      188.342231 deg
  Off zenith dist.: 38.636861 deg
  MJD:              52242
  UTC:              0.534340
  Center freq.:     1402.275380 MHz
  Doppler:          0.00009514
  Num. correlators: 2
  Spectrom. atten.: 31 38 dB
  Bandwidth:         5.0 MHz
  Num. channels:    1024
  Eff. integration: 240 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