PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/05-06:12:50
G01     57.4           29.5                4.3 +/-    1.81       7.7 +/-    1.81  0.060 / 0.110
G06     180.0          16.4                5.6 +/-    1.66      13.5 +/-    1.66  0.100 / 0.130
G07     143.0          18.0                8.5 +/-    2.03      19.7 +/-    2.03  0.030 / 0.040
G11     46.4           20.3                3.5 +/-    2.36       7.7 +/-    2.36  0.040 / 0.030
G13     258.9          34.6                8.0 +/-    1.43      12.8 +/-    1.43  0.080 / 0.160
G15     293.1          15.6                2.2 +/-    0.93       5.3 +/-    0.93  0.100 / 0.130
G17     281.3          79.9                7.5 +/-    0.75       7.6 +/-    0.75  0.040 / 0.050
G19     234.4          50.5                8.4 +/-    1.87      10.5 +/-    1.87  0.040 / 0.040
G28     36.7           56.9                6.4 +/-    1.06       7.5 +/-    1.06  0.030 / 0.020
G30     145.8          51.3                8.6 +/-    0.72      10.6 +/-    0.72  0.030 / 0.020