Object: 160-064 On scan num: 611 613 615 617 619 621 623 625 627 629 Off scan num: 612 614 616 618 620 622 624 626 628 630 R.A.: 12.976456 hrs Dec.: 27.263700 deg On azimuth: 114.656404 deg On zenith dist.: 21.473522 deg Off azimuth: 114.625951 deg Off zenith dist.: 21.488283 deg MJD: 52280 UTC: 0.405648 Center freq.: 1386.433148 MHz Doppler: 0.00008462 Num. correlators: 2 Spectrom. atten.: 34 40 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 2880 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 3 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: 0.003 Jy Lower 20% velocity: 7294.0 km/s Upper 20% velocity: 7491.1 km/s Systemic velocity: 7392.6 km/s Line width (20%): 197.1 km/s Profile integral: 0.50 Jy * km/s A: 0.46 B: 0.49 Ratio B/A: 1.062 Flux integral velocity range: 7276.2 - 7509.9 km/s
marginal detection, profile extent is a guess