Object: SL1728+5732 On scan num: 948 950 952 954 956 958 960 962 964 966 968 970 Off scan num: 949 951 953 955 957 959 961 963 965 967 969 971 R.A.: 17.473365 hrs Dec.: 57.545133 deg On azimuth: 325.043443 deg On zenith dist.: 65.041071 deg Off azimuth: 325.023237 deg Off zenith dist.: 65.012638 deg MJD: 52532 UTC: 0.254618 Center freq.: 1381.355211 MHz Doppler: -0.00001642 Num. correlators: 2 Spectrom. atten.: 35 39 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 3180 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 13 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: 0.024 Jy Lower 20% velocity: 8428.8 km/s Upper 20% velocity: 8695.0 km/s Systemic velocity: 8561.9 km/s Line width (20%): 266.2 km/s Profile integral: 3.68 Jy * km/s A: 3.19 B: 3.69 Ratio B/A: 1.156 Flux integral velocity range: 8386.3 - 8734.1 km/s
right on GPS frequency