Object: N7723 On scan num: 179 181 183 185 187 189 191 193 195 197 199 201 Off scan num: 180 182 184 186 188 190 192 194 196 198 200 202 R.A.: 23.649065 hrs Dec.: -12.959644 deg On azimuth: 157.046581 deg On zenith dist.: 54.245415 deg Off azimuth: 157.008280 deg Off zenith dist.: 54.255587 deg MJD: 52377 UTC: 0.592812 Center freq.: 1411.722273 MHz Doppler: 0.00005294 Num. correlators: 2 Spectrom. atten.: 38 39 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 1500 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 69 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: 0.049 Jy Lower 20% velocity: 1695.4 km/s Upper 20% velocity: 2023.9 km/s Systemic velocity: 1859.7 km/s Line width (20%): 328.5 km/s Profile integral: 7.63 Jy * km/s A: 7.03 B: 7.68 Ratio B/A: 1.092 Flux integral velocity range: 1678.5 - 2036.3 km/s