PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-17:43:10
G07     45.7           69.9               10.9 +/-    0.48      11.5 +/-    0.48  0.040 / 0.050
G08     53.4           43.2                8.6 +/-    0.74      11.9 +/-    0.74  0.040 / 0.060
G09     178.6          38.2               13.3 +/-    1.29      19.9 +/-    1.29  0.040 / 0.050
G11     121.4          34.0               12.4 +/-    1.12      20.0 +/-    1.12  0.030 / 0.040
G17     200.9          10.4               -8.0 +/-   16.99     -22.2 +/-   16.99  0.050 / 0.070
G18     105.9          15.7               11.8 +/-    1.10      28.8 +/-    1.10  0.050 / 0.070
G28     273.8          52.1               11.8 +/-    0.75      14.6 +/-    0.75  0.070 / 0.140
G30     332.2          59.8               10.6 +/-    1.58      12.1 +/-    1.58  0.080 / 0.130