Object: LVM246. On scan num: 1036 1038 Off scan num: 1037 1039 R.A.: 8.411751 hrs Dec.: 61.543178 deg On azimuth: 329.629905 deg On zenith dist.: 30.484371 deg Off azimuth: 329.657677 deg Off zenith dist.: 30.462758 deg MJD: 52284 UTC: 0.356505 Center freq.: 1385.962698 MHz Doppler: 0.00000240 Num. correlators: 2 Spectrom. atten.: 33 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 540 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: 0.020 Jy Lower 20% velocity: 7260.3 km/s Upper 20% velocity: 7636.9 km/s Systemic velocity: 7448.6 km/s Line width (20%): 376.5 km/s Profile integral: 5.02 Jy * km/s A: 4.05 B: 4.85 Ratio B/A: 1.197 Flux integral velocity range: 7236.8 - 7652.4 km/s