PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-02:27:50
G01     114.5          21.2                6.6 +/-    1.29      14.1 +/-    1.29  0.030 / 0.050
G07     92.5           63.6                3.9 +/-    0.81       4.3 +/-    0.81  0.040 / 0.060
G08     43.5           27.8                1.5 +/-    1.76       2.7 +/-    1.76  0.020 / 0.040
G09     176.9          21.7                4.8 +/-    3.04      10.2 +/-    3.04  0.020 / 0.040
G11     102.1          41.4                6.5 +/-    0.43       9.3 +/-    0.43  0.060 / 0.080
G13     315.6          22.3               -0.0 +/-    1.20      -0.1 +/-    1.20  0.080 / 0.080
G17     203.2          29.7                7.5 +/-    2.74      13.2 +/-    2.74  0.110 / 0.120
G28     303.8          59.4                5.1 +/-    0.66       5.9 +/-    0.66  0.050 / 0.110
G30     8.1            74.3                4.1 +/-    0.48       4.3 +/-    0.48  0.110 / 0.120