PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-00:57:40
G01     97.6           29.7                5.5 +/-    1.58       9.7 +/-    1.58  0.040 / 0.050
G07     118.8          51.3                5.3 +/-    0.61       6.6 +/-    0.61  0.030 / 0.050
G08     42.0           14.7                3.7 +/-    1.83       9.4 +/-    1.83  0.030 / 0.080
G11     80.0           43.0                5.9 +/-    1.12       8.1 +/-    1.12  0.040 / 0.060
G13     302.3          32.9                7.6 +/-    1.47      12.5 +/-    1.47  0.130 / 0.320
G17     210.7          45.6                5.9 +/-    2.26       7.8 +/-    2.26  0.160 / 0.250
G19     211.9          21.5                7.9 +/-    1.79      16.8 +/-    1.79  0.100 / 0.130
G28     337.6          61.9                4.1 +/-    0.56       4.6 +/-    0.56  0.100 / 0.130
G30     90.9           75.7                5.0 +/-    0.62       5.2 +/-    0.62  0.040 / 0.080