PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-10:58:10
G01     117.6          17.7                3.7 +/-    1.02       8.6 +/-    1.02  0.120 / 0.330
G07     85.9           64.0                4.8 +/-    0.42       5.3 +/-    0.42  0.110 / 0.370
G08     46.2           35.3                2.9 +/-    0.56       4.6 +/-    0.56  0.040 / 0.070
G09     176.9          26.3                5.7 +/-    3.55      10.8 +/-    3.55  0.040 / 0.080
G11     107.1          41.1                5.4 +/-    0.67       7.7 +/-    0.67  0.070 / 0.080
G13     317.1          20.8                3.0 +/-    2.41       6.6 +/-    2.41  0.070 / 0.090
G17     202.2          21.0                4.2 +/-    1.01       9.1 +/-    1.01  0.030 / 0.040
G18     93.0           20.9                4.6 +/-    0.76      10.0 +/-    0.76  0.030 / 0.040
G28     283.8          53.0                4.5 +/-    0.77       5.4 +/-    0.77  0.080 / 0.160
G30     346.4          69.0                2.6 +/-    0.94       2.8 +/-    0.94  0.070 / 0.200