Object: 14+08-4 On scan num: 28 30 32 34 36 38 Off scan num: 29 31 33 35 37 39 R.A.: 13.526524 hrs Dec.: 40.871047 deg On azimuth: 64.664245 deg On zenith dist.: 50.329905 deg Off azimuth: 64.646675 deg Off zenith dist.: 50.365318 deg MJD: 52553 UTC: 0.555475 Center freq.: 1418.536816 MHz Doppler: 0.00001669 Num. correlators: 2 Spectrom. atten.: 35 34 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1740 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: 0.073 Jy Lower 20% velocity: 1001.8 km/s Upper 20% velocity: 1060.6 km/s Systemic velocity: 1031.2 km/s Line width (20%): 58.8 km/s Profile integral: 3.30 Jy * km/s A: 2.95 B: 3.26 Ratio B/A: 1.105 Flux integral velocity range: 990.1 - 1073.1 km/s