Object: UGC00006 On scan num: 66 68 70 72 74 76 Off scan num: 67 69 71 73 75 77 R.A.: 0.052675 hrs Dec.: 21.960343 deg On azimuth: 266.797581 deg On zenith dist.: 48.980277 deg Off azimuth: 266.766847 deg Off zenith dist.: 48.943930 deg MJD: 52603 UTC: 0.195891 Center freq.: 1389.783523 MHz Doppler: -0.00007697 Num. correlators: 2 Spectrom. atten.: 38 38 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 1620 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 6 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 first-order least squares fit baseline removed using most of the baseline shown in Figure 2.
Peak intensity: 0.005 Jy Lower 20% velocity: 6412.2 km/s Upper 20% velocity: 6736.5 km/s Systemic velocity: 6574.3 km/s Line width (20%): 324.4 km/s Profile integral: 1.08 Jy * km/s A: 0.66 B: 1.52 Ratio B/A: 2.306 Flux integral velocity range: 6395.3 - 6752.7 km/s