PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-03:43:10
G01     118.1          18.4                8.9 +/-    1.61      20.4 +/-    1.61  0.030 / 0.040
G07     86.7           64.1                5.7 +/-    0.43       6.3 +/-    0.43  0.030 / 0.030
G08     43.7           28.1                2.7 +/-    0.73       4.9 +/-    0.73  0.120 / 0.300
G09     175.2          23.1                7.8 +/-    2.21      16.0 +/-    2.21  0.160 / 0.280
G11     103.0          40.5                6.7 +/-    0.42       9.6 +/-    0.42  0.120 / 0.410
G13     317.0          20.7                3.9 +/-    4.47       8.4 +/-    4.47  0.120 / 0.430
G17     200.7          28.1                8.7 +/-    1.78      15.8 +/-    1.78  0.090 / 0.170
G18     89.7           20.8                7.8 +/-    0.98      16.9 +/-    0.98  0.100 / 0.180
G28     291.2          56.5                6.9 +/-    0.89       8.1 +/-    0.89  0.040 / 0.040
G30     345.1          68.6                3.3 +/-    0.67       3.5 +/-    0.67  0.040 / 0.040