PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-09:43:10
G01     126.0          12.5                5.5 +/-    2.79      14.6 +/-    2.79  0.040 / 0.030
G07     58.7           69.1                5.9 +/-    0.38       6.2 +/-    0.38  0.050 / 0.030
G08     48.6           36.8                4.3 +/-    0.88       6.5 +/-    0.88  0.300 / 0.370
G09     174.7          30.5                6.0 +/-    0.94      10.4 +/-    0.94  0.180 / 0.270
G11     115.4          36.3                8.2 +/-    0.90      12.7 +/-    0.90  0.100 / 0.370
G13     320.6          13.1                3.8 +/-    2.86       9.9 +/-    2.86  0.100 / 0.310
G17     199.5          17.5                3.5 +/-    1.46       8.2 +/-    1.46  0.030 / 0.020
G18     101.2          17.3                5.9 +/-    1.89      14.0 +/-    1.89  0.030 / 0.030
G28     277.4          53.0                5.3 +/-    3.93       6.5 +/-    3.93  0.120 / 0.230
G30     332.4          60.5                4.1 +/-    0.34       4.6 +/-    0.34  0.110 / 0.230