PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/15-02:43:00
G01     109.9          24.0                7.3 +/-    1.91      14.6 +/-    1.91  0.040 / 0.050
G07     102.0          60.3                5.8 +/-    1.00       6.6 +/-    1.00  0.050 / 0.050
G08     42.4           23.5                3.8 +/-    1.99       7.7 +/-    1.99  0.090 / 0.080
G09     176.0          17.1                6.0 +/-    1.26      14.1 +/-    1.26  0.090 / 0.070
G11     95.2           42.5                7.2 +/-    0.97      10.0 +/-    0.97  0.040 / 0.040
G13     312.5          25.8                1.5 +/-    1.69       2.8 +/-    1.69  0.040 / 0.040
G17     204.9          34.8                5.6 +/-    1.76       8.9 +/-    1.76  0.090 / 0.140
G19     208.3          11.1               -2.1 +/-    7.67      -5.8 +/-    7.67  0.060 / 0.170
G28     313.6          60.6                2.8 +/-    0.96       3.2 +/-    0.96  0.090 / 0.120
G30     26.2           77.0                3.4 +/-    0.61       3.5 +/-    0.61  0.080 / 0.140