Object: N1050 On scan num: 100 102 104 Off scan num: 101 103 105 R.A.: 2.709926 hrs Dec.: 34.763608 deg On azimuth: 278.815851 deg On zenith dist.: 36.623690 deg Off azimuth: 278.794318 deg Off zenith dist.: 36.587786 deg MJD: 52342 UTC: 0.995509 Center freq.: 1402.306343 MHz Doppler: -0.00008365 Num. correlators: 2 Spectrom. atten.: 35 42 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 840 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 1 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 1 channels by interpolation between the nearest valid channels
Peak intensity: 0.009 Jy Lower 20% velocity: 3759.2 km/s Upper 20% velocity: 4045.8 km/s Systemic velocity: 3902.5 km/s Line width (20%): 286.5 km/s Profile integral: 1.99 Jy * km/s A: 1.64 B: 3.05 Ratio B/A: 1.862 Flux integral velocity range: 3736.5 - 4062.3 km/s