PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/19-03:12:50
G01     119.0          17.7                5.4 +/-    0.96      12.6 +/-    0.96  0.030 / 0.040
G07     84.6           64.6                5.8 +/-    0.69       6.4 +/-    0.69  0.030 / 0.040
G08     44.1           29.0                1.6 +/-    0.96       2.9 +/-    0.96  0.040 / 0.070
G09     175.5          24.4                6.6 +/-    1.27      13.1 +/-    1.27  0.040 / 0.060
G11     104.4          40.2               -1.6 +/-    0.58      -2.3 +/-    0.58  0.100 / 0.190
G13     317.5          19.9                4.7 +/-    3.14      10.4 +/-    3.14  0.100 / 0.190
G17     200.4          27.0                7.1 +/-    1.67      13.2 +/-    1.67  0.110 / 0.420
G18     90.5           20.5                5.8 +/-    1.27      12.5 +/-    1.27  0.130 / 0.390
G28     289.2          56.0                4.8 +/-    0.67       5.7 +/-    0.67  0.030 / 0.040
G30     343.5          67.7                2.2 +/-    0.75       2.4 +/-    0.75  0.030 / 0.040