Object: UA62x On scan num: 566 Off scan num: 567 R.A.: 3.235865 hrs Dec.: -2.822571 deg On azimuth: 134.440645 deg On zenith dist.: 51.849219 deg Off azimuth: 134.403530 deg Off zenith dist.: 51.869098 deg MJD: 52242 UTC: 0.070856 Center freq.: 1412.305093 MHz Doppler: -0.00003501 Num. correlators: 2 Spectrom. atten.: 30 38 dB Bandwidth: 10.0 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 2 60-second sub-integrations manually deleted because of interference or a bad baseline.
This is the section of spectrum measured to obtain the parameters listed below. The three horizontal dotted lines are the baseline, the peak level selected, and 20% of the peak level. The two vertical dotted lines mark the selected 20% line width edges. The solid horizontal line marks the velocity range chosen for the the line profile flux density integral. This spectrum has a second-order least squares fit baseline removed using most of the baseline shown in Figure 2.
Peak intensity: 0.428 Jy Lower 20% velocity: 1548.6 km/s Upper 20% velocity: 1867.5 km/s Systemic velocity: 1708.1 km/s Line width (20%): 318.9 km/s Profile integral: 96.25 Jy * km/s A: 74.90 B: 98.39 Ratio B/A: 1.314 Flux integral velocity range: 1519.5 - 1898.9 km/s