PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-10:27:50
G01     100.5          27.5                4.2 +/-    1.23       7.7 +/-    1.23  0.030 / 0.040
G07     114.6          52.1                5.6 +/-    0.55       6.9 +/-    0.55  0.030 / 0.050
G08     41.9           19.5                3.8 +/-    2.25       8.5 +/-    2.25  0.220 / 0.350
G11     82.9           44.0                5.6 +/-    1.27       7.7 +/-    1.27  0.290 / 0.340
G13     304.8          32.7                3.0 +/-    2.20       4.9 +/-    2.20  0.060 / 0.060
G17     207.8          39.6                4.8 +/-    0.76       7.0 +/-    0.76  0.050 / 0.070
G18     74.2           24.6                5.6 +/-    1.02      11.0 +/-    1.02  0.120 / 0.240
G19     209.4          19.1               -2.4 +/-    6.91      -5.3 +/-    6.91  0.140 / 0.120
G28     313.6          59.3                4.2 +/-    0.87       4.8 +/-    0.87  0.080 / 0.150
G30     44.0           80.1                5.3 +/-    0.64       5.3 +/-    0.64  0.070 / 0.140