Object: UGC11124* On scan num: 965 Off scan num: 966 R.A.: 18.124366 hrs Dec.: 35.564140 deg On azimuth: 291.676699 deg On zenith dist.: 56.868282 deg Off azimuth: 291.522018 deg Off zenith dist.: 56.607358 deg MJD: 52244 UTC: 0.981840 Center freq.: 1412.774842 MHz Doppler: -0.00002090 Num. correlators: 2 Spectrom. atten.: 35 41 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 300 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 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 1.
Peak intensity: 0.173 Jy Lower 20% velocity: 1526.1 km/s Upper 20% velocity: 1689.1 km/s Systemic velocity: 1607.6 km/s Line width (20%): 163.0 km/s Profile integral: 22.37 Jy * km/s A: 17.62 B: 22.27 Ratio B/A: 1.264 Flux integral velocity range: 1502.6 - 1711.0 km/s
could be some HI around 1480 km/s