Object: 0345+7252 On scan num: 4290 4292 4294 4296 4298 4300 Off scan num: 4291 4293 4295 4297 4299 4301 R.A.: 3.843480 hrs Dec.: 73.030909 deg On azimuth: 357.435652 deg On zenith dist.: 34.603926 deg Off azimuth: 357.463500 deg Off zenith dist.: 34.601670 deg MJD: 52533 UTC: 0.407581 Center freq.: 1400.351045 MHz Doppler: 0.00006117 Num. correlators: 2 Spectrom. atten.: 35 42 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1800 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 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 1.
Peak intensity: 0.012 Jy Lower 20% velocity: 4129.5 km/s Upper 20% velocity: 4570.1 km/s Systemic velocity: 4349.8 km/s Line width (20%): 440.6 km/s Profile integral: 4.89 Jy * km/s A: 3.84 B: 4.72 Ratio B/A: 1.228 Flux integral velocity range: 4085.0 - 4591.9 km/s