PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-02:42:40
G01     125.5          12.6                5.1 +/-   18.07      13.4 +/-   18.07  0.030 / 0.040
G07     64.5           67.9                6.5 +/-    0.72       7.0 +/-    0.72  0.030 / 0.030
G08     47.9           35.6                4.1 +/-    0.64       6.5 +/-    0.64  0.120 / 0.090
G09     176.4          32.6                5.4 +/-    0.86       9.0 +/-    0.86  0.110 / 0.110
G11     114.1          36.7                6.5 +/-    0.74      10.0 +/-    0.74  0.120 / 0.240
G13     320.4          13.6               -1.0 +/-   11.32      -2.5 +/-   11.32  0.110 / 0.210
G17     199.0          19.0                5.4 +/-    1.62      12.1 +/-    1.62  0.150 / 0.380
G18     98.4           17.4                6.1 +/-    1.80      14.2 +/-    1.80  0.150 / 0.370
G28     276.3          52.1                4.8 +/-    3.24       5.9 +/-    3.24  0.180 / 0.340
G30     333.0          61.0                4.3 +/-    0.81       4.8 +/-    0.81  0.200 / 0.330