Object: N3154 On scan num: 38 40 42 44 46 48 Off scan num: 39 41 43 45 47 49 R.A.: 10.217652 hrs Dec.: 17.029995 deg On azimuth: 85.889605 deg On zenith dist.: 67.065230 deg Off azimuth: 85.862148 deg Off zenith dist.: 67.101213 deg MJD: 52531 UTC: 0.458900 Center freq.: 1389.900577 MHz Doppler: 0.00003990 Num. correlators: 2 Spectrom. atten.: 35 40 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 840 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 31 60-second sub-integrations manually deleted because of interference or a bad baseline.