PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-05:27:50
G01     109.0          24.3                5.3 +/-    0.83      10.5 +/-    0.83  0.030 / 0.030
G07     105.1          57.9                7.0 +/-    0.25       8.1 +/-    0.25  0.040 / 0.030
G08     41.7           19.6                2.5 +/-    0.98       5.7 +/-    0.98  0.070 / 0.160
G09     173.2          12.9                5.5 +/-    2.40      14.5 +/-    2.40  0.060 / 0.160
G11     89.3           42.4                7.3 +/-    0.59      10.3 +/-    0.59  0.030 / 0.030
G13     310.9          27.8               -0.7 +/-    0.92      -1.4 +/-    0.92  0.030 / 0.040
G17     203.9          38.4                8.3 +/-    1.73      12.5 +/-    1.73  0.050 / 0.070
G28     310.3          59.9                5.0 +/-    0.93       5.7 +/-    0.93  0.040 / 0.070
G30     7.8            76.4                6.2 +/-    0.49       6.4 +/-    0.49  0.040 / 0.070