17208-0014 Scan 345

Contents

Observing log information

  Object:           17208-0014
  On scan num:      345 347 349 351 353 355 357 359 361 363 365 367
  Off scan num:     346 348 350 352 354 356 358 360 362 364 366 368
  R.A.:             17.346688 hrs
  Dec.:             -0.233140 deg
  On azimuth:       224.189633 deg
  On zenith dist.:  48.087296 deg
  Off azimuth:      224.151835 deg
  Off zenith dist.: 48.068738 deg
  MJD:              52234
  UTC:              0.860648
  Center freq.:     1361.765382 MHz
  Doppler:          -0.00003096
  Num. correlators: 2
  Spectrom. atten.: 36 42 dB
  Bandwidth:        20.0 MHz
  Num. channels:    1024
  Eff. integration: 1920 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 56 60-second sub-integrations manually deleted because of interference or a bad baseline.

Figure 2. Edited spectrum