1240+03 Scan 314


Observing log information

  Object:           1240+03
  On scan num:      314 316 318 320 322 324
  Off scan num:     315 317 319 321 323 325
  R.A.:             12.722844 hrs
  Dec.:             3.418061 deg
  On azimuth:       252.757492 deg
  On zenith dist.:  64.287358 deg
  Off azimuth:      252.723535 deg
  Off zenith dist.: 64.252542 deg
  MJD:              52485
  UTC:              0.061690
  Center freq.:     1415.777833 MHz
  Doppler:          -0.00008638
  Num. correlators: 2
  Spectrom. atten.: 35 42 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1740 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