PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-05:43:10
G01     109.2          24.3                5.0 +/-    0.88       9.9 +/-    0.88  0.030 / 0.030
G07     104.8          58.1                6.7 +/-    0.52       7.7 +/-    0.52  0.030 / 0.030
G08     41.7           19.7                2.1 +/-    0.69       4.7 +/-    0.69  0.040 / 0.050
G09     173.1          12.9                5.0 +/-    3.48      13.0 +/-    3.48  0.040 / 0.050
G11     89.6           42.4                6.5 +/-    0.73       9.1 +/-    0.73  0.060 / 0.190
G13     311.0          27.7                2.9 +/-    0.90       5.3 +/-    0.90  0.060 / 0.170
G17     203.9          38.2                7.3 +/-    1.52      10.9 +/-    1.52  0.030 / 0.030
G28     310.1          59.9                4.3 +/-    0.93       4.9 +/-    0.93  0.030 / 0.040
G30     7.2            76.3                5.4 +/-    0.48       5.5 +/-    0.48  0.040 / 0.080