Object: U-07434 On scan num: 4919 4921 4923 4925 4927 4929 Off scan num: 4920 4922 4924 4926 4928 4930 R.A.: 12.368541 hrs Dec.: 26.056213 deg On azimuth: 432.557815 deg On zenith dist.: 69.201222 deg Off azimuth: 432.533174 deg Off zenith dist.: 69.235670 deg MJD: 52545 UTC: 0.483981 Center freq.: 1415.622224 MHz Doppler: 0.00001982 Num. correlators: 2 Spectrom. atten.: 35 34 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: 0.032 Jy Lower 20% velocity: 951.7 km/s Upper 20% velocity: 1081.0 km/s Systemic velocity: 1016.4 km/s Line width (20%): 129.3 km/s Profile integral: 3.58 Jy * km/s A: 4.30 B: 2.99 Ratio B/A: 0.696 Flux integral velocity range: 944.3 - 1089.6 km/s