PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-05:12:30
G07     19.6           68.2                5.7 +/-    0.49       6.1 +/-    0.49  0.080 / 0.090
G08     61.8           47.1                7.3 +/-    0.88       9.6 +/-    0.88  0.060 / 0.070
G09     179.7          49.2                9.9 +/-    0.64      12.6 +/-    0.64  0.030 / 0.020
G11     129.4          27.1                7.8 +/-    0.99      14.4 +/-    0.99  0.030 / 0.030
G23     160.6          20.1                6.7 +/-    1.57      14.6 +/-    1.57  0.050 / 0.040
G27     39.9           15.8                3.6 +/-    1.69       8.8 +/-    1.69  0.040 / 0.040
G28     260.3          46.4                5.7 +/-    3.91       7.6 +/-    3.91  0.050 / 0.050
G30     321.6          51.5                5.7 +/-    0.69       7.1 +/-    0.69  0.040 / 0.060