PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-09:12:40
G01     88.6           32.1                5.6 +/-    1.18       9.4 +/-    1.18  0.020 / 0.020
G07     126.9          43.3                7.5 +/-    1.33      10.4 +/-    1.33  0.030 / 0.030
G11     65.5           38.4                5.3 +/-    1.09       7.9 +/-    1.09  0.050 / 0.040
G13     292.6          36.8               12.0 +/-    1.60      18.4 +/-    1.60  0.050 / 0.050
G17     215.0          57.1                9.9 +/-    1.02      11.6 +/-    1.02  0.110 / 0.100
G18     60.7           22.7                4.4 +/-    2.27       9.1 +/-    2.27  0.110 / 0.110
G19     215.4          24.6                9.5 +/-    3.27      18.7 +/-    3.27  0.070 / 0.180
G28     349.2          61.7                7.1 +/-    0.80       7.9 +/-    0.80  0.100 / 0.210
G30     105.7          76.8                7.9 +/-    0.33       8.1 +/-    0.33  0.130 / 0.280