Object: U-08066 On scan num: 273 275 277 279 281 283 Off scan num: 274 276 278 280 282 284 R.A.: 12.951298 hrs Dec.: 1.023228 deg On azimuth: 179.931050 deg On zenith dist.: 37.319428 deg Off azimuth: 179.895914 deg Off zenith dist.: 37.319148 deg MJD: 52484 UTC: 0.905880 Center freq.: 1407.295587 MHz Doppler: -0.00008870 Num. correlators: 2 Spectrom. atten.: 38 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1620 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 5 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: 0.031 Jy Lower 20% velocity: 2686.6 km/s Upper 20% velocity: 2849.8 km/s Systemic velocity: 2768.2 km/s Line width (20%): 163.2 km/s Profile integral: 4.06 Jy * km/s A: 3.62 B: 4.35 Ratio B/A: 1.200 Flux integral velocity range: 2676.0 - 2858.7 km/s