Object: UM612 On scan num: 166 168 170 172 174 176 Off scan num: 167 169 171 173 175 177 R.A.: 13.781401 hrs Dec.: -0.991288 deg On azimuth: 218.960440 deg On zenith dist.: 47.266594 deg Off azimuth: 221.944301 deg Off zenith dist.: 47.946410 deg MJD: 52740 UTC: 0.317870 Center freq.: 1398.451579 MHz Doppler: 0.00000844 Num. correlators: 2 Spectrom. atten.: 38 40 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 1260 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 18 60-second sub-integrations manually deleted because of interference or a bad baseline.