Object: 0435+6738 On scan num: 193 195 197 Off scan num: 194 196 198 R.A.: 4.679891 hrs Dec.: 67.735851 deg On azimuth: 331.815609 deg On zenith dist.: 52.982667 deg Off azimuth: 331.808780 deg Off zenith dist.: 52.959551 deg MJD: 52511 UTC: 0.724363 Center freq.: 1397.976760 MHz Doppler: 0.00006615 Num. correlators: 2 Spectrom. atten.: 37 42 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 840 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: 0.022 Jy Lower 20% velocity: 4920.4 km/s Upper 20% velocity: 5226.1 km/s Systemic velocity: 5073.2 km/s Line width (20%): 305.7 km/s Profile integral: 4.49 Jy * km/s A: 3.85 B: 4.82 Ratio B/A: 1.252 Flux integral velocity range: 4887.1 - 5311.3 km/s