Object: LVM195. On scan num: 79 81 83 85 87 Off scan num: 80 82 84 86 88 R.A.: 7.563056 hrs Dec.: 65.445923 deg On azimuth: 336.415329 deg On zenith dist.: 32.319101 deg Off azimuth: 336.444808 deg Off zenith dist.: 32.300493 deg MJD: 52756 UTC: 0.025428 Center freq.: 1389.434611 MHz Doppler: -0.00006697 Num. correlators: 2 Spectrom. atten.: 27 31 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 1440 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: 0.005 Jy Lower 20% velocity: 6410.4 km/s Upper 20% velocity: 6808.0 km/s Systemic velocity: 6609.2 km/s Line width (20%): 397.6 km/s Profile integral: 1.14 Jy * km/s A: 0.97 B: 1.24 Ratio B/A: 1.283 Flux integral velocity range: 6393.4 - 6824.1 km/s