Object: LVM66t. On scan num: 69 71 73 75 77 79 Off scan num: 70 72 74 76 78 80 R.A.: 1.983685 hrs Dec.: 86.673743 deg On azimuth: 355.781737 deg On zenith dist.: 50.911323 deg Off azimuth: 355.782571 deg Off zenith dist.: 50.906137 deg MJD: 52285 UTC: 0.216181 Center freq.: 1398.659955 MHz Doppler: -0.00001991 Num. correlators: 2 Spectrom. atten.: 33 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1740 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 2 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: 0.019 Jy Lower 20% velocity: 4549.5 km/s Upper 20% velocity: 4763.0 km/s Systemic velocity: 4656.2 km/s Line width (20%): 213.4 km/s Profile integral: 2.66 Jy * km/s A: 2.03 B: 2.68 Ratio B/A: 1.319 Flux integral velocity range: 4536.1 - 4778.4 km/s
RFI near 20 percent level profile edges