Object: 04071+3810 On scan num: 87 89 91 93 95 97 99 101 103 105 107 109 Off scan num: 88 90 92 94 96 98 100 102 104 106 108 110 R.A.: 4.175711 hrs Dec.: 38.311705 deg On azimuth: 289.929221 deg On zenith dist.: 46.779441 deg Off azimuth: 289.913171 deg Off zenith dist.: 46.748466 deg MJD: 52256 UTC: 0.335544 Center freq.: 1391.137702 MHz Doppler: -0.00002393 Num. correlators: 2 Spectrom. atten.: 34 40 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 3480 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 3 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: 0.006 Jy Lower 20% velocity: 6219.0 km/s Upper 20% velocity: 6409.6 km/s Systemic velocity: 6314.3 km/s Line width (20%): 190.7 km/s Profile integral: 0.62 Jy * km/s A: 0.53 B: 0.69 Ratio B/A: 1.301 Flux integral velocity range: 6206.7 - 6421.6 km/s
extremely low SNR, edge locations only guesses