PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-02:42:50
G01     113.2          19.8                8.4 +/-    0.84      18.5 +/-    0.84  0.030 / 0.030
G07     88.6           64.9                6.0 +/-    0.47       6.5 +/-    0.47  0.040 / 0.030
G08     43.3           27.1                2.9 +/-    0.96       5.4 +/-    0.96  0.060 / 0.090
G09     173.1          18.5                6.5 +/-    1.13      14.9 +/-    1.13  0.130 / 0.220
G11     107.3          43.1                8.6 +/-    0.87      11.9 +/-    0.87  0.040 / 0.070
G13     315.2          23.7                3.2 +/-    1.42       6.5 +/-    1.42  0.050 / 0.070
G17     201.4          28.8                5.8 +/-    1.27      10.5 +/-    1.27  0.090 / 0.080
G28     286.1          52.8                5.1 +/-    1.81       6.2 +/-    1.81  0.070 / 0.070
G30     343.0          68.8                5.3 +/-    0.93       5.6 +/-    0.93  0.130 / 0.110