Object: 04081+3839 On scan num: 2314 2316 2318 2320 2322 2324 Off scan num: 2315 2317 2319 2321 2323 2325 R.A.: 4.192301 hrs Dec.: 38.784292 deg On azimuth: 293.398187 deg On zenith dist.: 52.201432 deg Off azimuth: 293.381832 deg Off zenith dist.: 52.171281 deg MJD: 52254 UTC: 0.362998 Center freq.: 1403.060740 MHz Doppler: -0.00002019 Num. correlators: 2 Spectrom. atten.: 33 39 dB Bandwidth: 40.0 MHz Num. channels: 1024 Eff. integration: 1680 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. Narrow band interference was removed from 3 channels by interpolation between the nearest valid channels
Peak intensity: 0.030 Jy Lower 20% velocity: 5488.4 km/s Upper 20% velocity: 6017.9 km/s Systemic velocity: 5753.2 km/s Line width (20%): 529.5 km/s Profile integral: 8.57 Jy * km/s A: 6.10 B: 9.28 Ratio B/A: 1.522 Flux integral velocity range: 5408.0 - 6093.2 km/s
several profiles blended, only measured main group