Object: 2359+2313 On scan num: 316 318 320 Off scan num: 317 319 321 R.A.: 0.028241 hrs Dec.: 23.494102 deg On azimuth: 151.939922 deg On zenith dist.: 16.493922 deg Off azimuth: 151.975096 deg Off zenith dist.: 16.489522 deg MJD: 52259 UTC: 0.960058 Center freq.: 1399.866752 MHz Doppler: -0.00009074 Num. correlators: 2 Spectrom. atten.: 33 38 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 900 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 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 1. Narrow band interference was removed from 8 channels by interpolation between the nearest valid channels
Peak intensity: 0.037 Jy
Lower 20% velocity: 4082.0 km/s
Upper 20% velocity: 4713.0 km/s
Systemic velocity: 4397.5 km/s
Line width (20%): 631.0 km/s
Profile integral: 15.30 Jy * km/s
A: 12.38
B: 16.45
Ratio B/A: 1.329
Flux integral
velocity range: 3989.9 - 4798.5 km/s
asymmetric and irregular profile, hard to define peak and edges