04085+3834 Scan 2290


Observing log information

  Object:           04085+3834
  On scan num:      2290 2292 2294 2296 2298 2300
  Off scan num:     2291 2293 2295 2297 2299 2301
  R.A.:             4.203418 hrs
  Dec.:             38.700187 deg
  On azimuth:       281.911941 deg
  On zenith dist.:  27.810311 deg
  Off azimuth:      281.896403 deg
  Off zenith dist.: 27.774179 deg
  MJD:              52254
  UTC:              0.272662
  Center freq.:     1391.598466 MHz
  Doppler:          -0.00001953
  Num. correlators: 2
  Spectrom. atten.: 33 39 dB
  Bandwidth:        10.0 MHz
  Num. channels:    1024
  Eff. integration: 1140 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 21 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum