PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-00:12:40
G01     70.4           32.9                5.9 +/-    0.90       9.8 +/-    0.90  0.040 / 0.050
G07     137.6          31.1                9.8 +/-    1.08      16.7 +/-    1.08  0.030 / 0.040
G11     55.3           32.8                5.1 +/-    1.32       8.4 +/-    1.32  0.050 / 0.080
G13     274.8          37.2                7.1 +/-    2.31      10.8 +/-    2.31  0.060 / 0.060
G15     301.7          15.7                4.0 +/-    1.25       9.7 +/-    1.25  0.030 / 0.030
G17     233.1          66.6                8.3 +/-    0.72       8.9 +/-    0.72  0.040 / 0.030
G19     224.5          42.3                8.4 +/-    1.74      11.8 +/-    1.74  0.080 / 0.100
G28     21.2           59.0                5.8 +/-    2.74       6.6 +/-    2.74  0.060 / 0.090
G30     135.6          57.9               10.1 +/-    0.31      11.7 +/-    0.31  0.090 / 0.100