PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-22:42:50
G10     262.9          34.9               19.3 +/-    1.26      30.7 +/-    1.26  0.060 / 0.100
G13     44.7           22.8               14.4 +/-    2.46      29.7 +/-    2.46  0.060 / 0.110
G15     64.5           52.1               17.6 +/-    0.67      21.7 +/-    0.67  0.220 / 0.300
G16     285.6          12.4               18.4 +/-    1.14      48.7 +/-    1.14  0.290 / 0.340
G18     292.2          62.7               17.3 +/-    0.70      19.2 +/-    0.70  0.040 / 0.030
G20     52.3           37.0               14.8 +/-    1.71      22.7 +/-    1.71  0.050 / 0.040
G21     356.4          70.0               17.6 +/-    0.53      18.6 +/-    0.53  0.170 / 0.240
G24     124.6          11.6               21.4 +/-    3.81      57.6 +/-    3.81  0.190 / 0.180
G27     319.4          17.3               16.4 +/-    2.43      38.5 +/-    2.43  0.050 / 0.070
G29     166.1          31.8               19.1 +/-    0.54      32.3 +/-    0.54  0.080 / 0.090