PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-09:43:10
G01     124.0          12.7                3.1 +/-    2.44       8.2 +/-    2.44  0.030 / 0.040
G07     65.3           67.8                5.2 +/-    0.52       5.6 +/-    0.52  0.030 / 0.030
G08     51.0           41.4                3.5 +/-    0.39       5.0 +/-    0.39  0.090 / 0.350
G09     177.5          34.1                5.5 +/-    1.13       8.9 +/-    1.13  0.110 / 0.430
G11     117.1          37.4                6.4 +/-    1.19       9.7 +/-    1.19  0.060 / 0.090
G13     320.1          14.5                1.8 +/-    1.84       4.6 +/-    1.84  0.060 / 0.090
G17     200.6          13.9                5.1 +/-    1.25      12.9 +/-    1.25  0.090 / 0.390
G18     101.0          17.6                2.7 +/-    9.05       6.3 +/-    9.05  0.130 / 0.420
G28     271.9          48.6                6.0 +/-    1.17       7.7 +/-    1.17  0.090 / 0.330
G30     334.0          61.9                3.5 +/-    0.75       3.9 +/-    0.75  0.100 / 0.360