Object: 04083+3838 On scan num: 2426 2428 2430 2432 2434 2436 2438 2440 2442 2444 Off scan num: 2427 2429 2431 2433 2435 2437 2439 2441 2443 2445 R.A.: 4.200197 hrs Dec.: 38.769016 deg On azimuth: 285.063920 deg On zenith dist.: 34.900441 deg Off azimuth: 285.050893 deg Off zenith dist.: 34.871897 deg MJD: 52255 UTC: 0.295694 Center freq.: 1393.417401 MHz Doppler: -0.00002137 Num. correlators: 2 Spectrom. atten.: 34 39 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 2400 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 19 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 4th-order least squares fit baseline removed using most of the baseline shown in Figure 2. Narrow band interference was removed from 4 channels by interpolation between the nearest valid channels
Peak intensity: 0.023 Jy Lower 20% velocity: 5431.6 km/s Upper 20% velocity: 6066.4 km/s Systemic velocity: 5749.0 km/s Line width (20%): 634.9 km/s Profile integral: 12.02 Jy * km/s A: 8.75 B: 9.92 Ratio B/A: 1.134 Flux integral velocity range: 5402.3 - 6136.7 km/s
two profiles, only measured largest one