PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-09:58:10
G01     124.5          12.3                3.5 +/-    2.08       9.4 +/-    2.08  0.030 / 0.030
G07     63.9           67.9                6.0 +/-    0.31       6.4 +/-    0.31  0.030 / 0.040
G08     51.7           42.1                4.2 +/-    0.69       5.9 +/-    0.69  0.100 / 0.370
G09     177.7          34.8                6.2 +/-    1.78       9.9 +/-    1.78  0.100 / 0.390
G11     117.7          37.0                6.8 +/-    1.35      10.4 +/-    1.35  0.050 / 0.100
G13     320.3          14.0                2.4 +/-    2.86       6.1 +/-    2.86  0.050 / 0.080
G17     200.6          13.1                7.9 +/-    3.67      20.5 +/-    3.67  0.080 / 0.310
G18     101.5          17.3                4.7 +/-    1.73      10.9 +/-    1.73  0.100 / 0.340
G28     271.1          48.3                8.0 +/-    0.95      10.3 +/-    0.95  0.080 / 0.270
G30     333.5          61.5                5.0 +/-    0.74       5.6 +/-    0.74  0.080 / 0.330