PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/26-23:57:30
G07     335.1          58.7                5.9 +/-    1.16       6.8 +/-    1.16  0.090 / 0.160
G08     98.3           52.5                8.5 +/-    0.31      10.4 +/-    0.31  0.100 / 0.160
G09     192.3          72.8                7.0 +/-    0.56       7.3 +/-    0.56  0.050 / 0.080
G11     146.3          13.4                9.1 +/-    2.71      23.6 +/-    2.71  0.040 / 0.080
G23     155.8          39.5                9.3 +/-    0.75      13.7 +/-    0.75  0.030 / 0.040
G27     52.9           30.1                5.5 +/-    0.56       9.6 +/-    0.56  0.030 / 0.050
G28     238.9          31.5                7.5 +/-    2.17      12.7 +/-    2.17  0.030 / 0.050
G30     305.5          39.2                6.5 +/-    0.59       9.6 +/-    0.59  0.030 / 0.050