Object: 0540+0035 On scan num: 19 21 23 25 27 29 Off scan num: 20 22 24 26 28 30 R.A.: 5.718021 hrs Dec.: 0.619302 deg On azimuth: 209.883412 deg On zenith dist.: 41.699039 deg Off azimuth: 209.848260 deg Off zenith dist.: 41.689742 deg MJD: 52510 UTC: 0.588137 Center freq.: 1400.482521 MHz Doppler: 0.00008270 Num. correlators: 2 Spectrom. atten.: 40 42 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1440 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 11 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: 0.011 Jy Lower 20% velocity: 4163.1 km/s Upper 20% velocity: 4493.5 km/s Systemic velocity: 4328.3 km/s Line width (20%): 330.4 km/s Profile integral: 3.05 Jy * km/s A: 3.15 B: 3.03 Ratio B/A: 0.962 Flux integral velocity range: 4147.7 - 4508.2 km/s