Object: U10359o On scan num: 776 Off scan num: 777 R.A.: 16.347551 hrs Dec.: 65.383305 deg On azimuth: 334.778056 deg On zenith dist.: 63.974379 deg Off azimuth: 334.763215 deg Off zenith dist.: 63.956115 deg MJD: 52513 UTC: 0.283900 Center freq.: 1416.055627 MHz Doppler: -0.00000655 Num. correlators: 2 Spectrom. atten.: 37 42 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 300 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: 0.481 Jy Lower 20% velocity: 798.5 km/s Upper 20% velocity: 1020.2 km/s Systemic velocity: 909.3 km/s Line width (20%): 221.7 km/s Profile integral: 83.61 Jy * km/s A: 76.47 B: 85.28 Ratio B/A: 1.115 Flux integral velocity range: 772.9 - 1058.0 km/s