Object: 0828+5247 On scan num: 6 8 10 Off scan num: 7 9 11 R.A.: 8.541155 hrs Dec.: 52.606134 deg On azimuth: 10.693854 deg On zenith dist.: 14.460330 deg Off azimuth: 10.704057 deg Off zenith dist.: 14.460768 deg MJD: 52490 UTC: 0.694120 Center freq.: 1396.660141 MHz Doppler: 0.00002297 Num. correlators: 2 Spectrom. atten.: 35 42 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 660 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 7 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 5th-order least squares fit baseline removed using most of the baseline shown in Figure 2.
Peak intensity: 0.015 Jy Lower 20% velocity: 4824.4 km/s Upper 20% velocity: 5235.7 km/s Systemic velocity: 5030.0 km/s Line width (20%): 411.3 km/s Profile integral: 3.74 Jy * km/s A: 1.54 B: 0.93 Ratio B/A: 0.603 Flux integral velocity range: 4801.5 - 5280.9 km/s