PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-02:57:40
G01     104.9          26.7                9.7 +/-    0.82      18.2 +/-    0.82  0.040 / 0.060
G07     110.0          56.5                7.1 +/-    0.66       8.3 +/-    0.66  0.040 / 0.070
G08     41.9           19.3                3.3 +/-    2.01       7.5 +/-    2.01  0.060 / 0.070
G09     175.1          12.6                7.3 +/-    1.79      19.3 +/-    1.79  0.090 / 0.070
G11     88.1           42.9                7.5 +/-    0.48      10.4 +/-    0.48  0.040 / 0.050
G13     308.7          29.0                5.5 +/-    1.99       9.8 +/-    1.99  0.030 / 0.040
G17     206.9          40.0               11.8 +/-    1.28      17.1 +/-    1.28  0.080 / 0.130
G19     209.6          15.6                5.8 +/-    2.87      14.2 +/-    2.87  0.100 / 0.130
G28     323.7          61.4                6.3 +/-    1.49       7.1 +/-    1.49  0.070 / 0.120
G30     50.5           78.4                5.4 +/-    0.79       5.5 +/-    0.79  0.070 / 0.110