PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-02:57:50
G01     104.9          26.7                7.2 +/-    1.82      13.5 +/-    1.82  0.040 / 0.050
G07     110.0          56.5                7.5 +/-    0.71       8.8 +/-    0.71  0.040 / 0.050
G08     41.9           19.3                4.2 +/-    1.43       9.3 +/-    1.43  0.030 / 0.040
G09     175.1          12.6                6.4 +/-    1.56      16.9 +/-    1.56  0.030 / 0.040
G11     88.1           42.9                8.0 +/-    1.63      11.1 +/-    1.63  0.140 / 0.170
G13     308.7          29.0                5.6 +/-    0.80      10.0 +/-    0.80  0.130 / 0.120
G17     206.9          40.0               10.5 +/-    1.03      15.2 +/-    1.03  0.050 / 0.070
G19     209.6          15.6                7.0 +/-    2.20      17.2 +/-    2.20  0.060 / 0.060
G28     323.7          61.4                5.8 +/-    0.73       6.5 +/-    0.73  0.240 / 0.230
G30     50.5           78.4                6.7 +/-    1.14       6.8 +/-    1.14  0.250 / 0.340