PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-02:27:50
G07     344.9          61.9                6.8 +/-    0.91       7.6 +/-    0.91  0.040 / 0.090
G08     85.9           51.4                7.6 +/-    0.47       9.4 +/-    0.47  0.050 / 0.090
G09     180.7          66.1                7.5 +/-    1.36       8.1 +/-    1.36  0.070 / 0.090
G11     140.9          17.3                8.7 +/-    1.01      20.6 +/-    1.01  0.050 / 0.090
G23     158.0          38.7                8.8 +/-    0.80      13.1 +/-    0.80  0.040 / 0.050
G27     52.4           30.8                6.3 +/-    1.10      10.9 +/-    1.10  0.040 / 0.040
G28     240.6          31.5                8.0 +/-    1.64      13.6 +/-    1.64  0.080 / 0.080
G30     305.0          37.2                5.0 +/-    0.89       7.6 +/-    0.89  0.060 / 0.070