Object: LVM28t. On scan num: 45 47 49 51 53 55 Off scan num: 46 48 50 52 54 56 R.A.: 0.568777 hrs Dec.: 44.145239 deg On azimuth: 299.510512 deg On zenith dist.: 49.576347 deg Off azimuth: 299.496766 deg Off zenith dist.: 49.544617 deg MJD: 52285 UTC: 0.124815 Center freq.: 1394.036540 MHz Doppler: -0.00008120 Num. correlators: 2 Spectrom. atten.: 33 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 6 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: 0.020 Jy Lower 20% velocity: 5521.7 km/s Upper 20% velocity: 5757.4 km/s Systemic velocity: 5639.5 km/s Line width (20%): 235.7 km/s Profile integral: 3.40 Jy * km/s A: 2.64 B: 3.65 Ratio B/A: 1.381 Flux integral velocity range: 5501.0 - 5768.5 km/s