Object: LVM357. On scan num: 1076 1078 Off scan num: 1077 1079 R.A.: 9.734953 hrs Dec.: 83.806507 deg On azimuth: 352.447463 deg On zenith dist.: 49.243301 deg Off azimuth: 352.450699 deg Off zenith dist.: 49.235432 deg MJD: 52284 UTC: 0.506308 Center freq.: 1392.525856 MHz Doppler: -0.00000715 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: 0.010 Jy Lower 20% velocity: 5867.2 km/s Upper 20% velocity: 6103.7 km/s Systemic velocity: 5985.5 km/s Line width (20%): 236.4 km/s Profile integral: 1.96 Jy * km/s A: 1.73 B: 2.23 Ratio B/A: 1.291 Flux integral velocity range: 5854.3 - 6120.2 km/s