Object: DDO_199 On scan num: 113 Off scan num: 114 R.A.: 15.147000 hrs Dec.: 67.110667 deg On azimuth: 331.968571 deg On zenith dist.: 55.776326 deg Off azimuth: 331.959059 deg Off zenith dist.: 55.753255 deg MJD: 52422 UTC: 0.424676 Center freq.: 1419.418654 MHz Doppler: -0.00002831 Num. correlators: 2 Spectrom. atten.: 36 40 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 240 seconds
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
This spectrum is the same as Figure 1 but with 1 60-second sub-integrations manually deleted because of interference or a bad baseline.