Object: U-07697 On scan num: 702 704 706 708 710 712 Off scan num: 703 705 707 709 711 713 R.A.: 12.548445 hrs Dec.: 20.174407 deg On azimuth: 274.101174 deg On zenith dist.: 61.529267 deg Off azimuth: 274.078833 deg Off zenith dist.: 61.499848 deg MJD: 52513 UTC: 0.004525 Center freq.: 1408.486710 MHz Doppler: -0.00003951 Num. correlators: 2 Spectrom. atten.: 37 42 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1740 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: 0.039 Jy Lower 20% velocity: 2412.1 km/s Upper 20% velocity: 2655.2 km/s Systemic velocity: 2533.6 km/s Line width (20%): 243.1 km/s Profile integral: 6.76 Jy * km/s A: 6.24 B: 6.65 Ratio B/A: 1.065 Flux integral velocity range: 2384.7 - 2671.9 km/s