PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-06:12:30
G02     201.6          34.9                7.7 +/-    2.19      12.2 +/-    2.19  0.070 / 0.220
G06     161.0          66.7                5.3 +/-    0.49       5.7 +/-    0.49  0.300 / 0.300
G12     306.1          15.3                2.6 +/-    1.51       6.3 +/-    1.51  0.060 / 0.110
G17     34.8           49.9                3.6 +/-    1.06       4.5 +/-    1.06  0.060 / 0.080
G19     1.8            65.6                3.6 +/-    0.41       3.9 +/-    0.41  0.050 / 0.090
G24     300.8          35.9                5.0 +/-    1.13       7.8 +/-    1.13  0.050 / 0.100
G28     95.1           40.3                6.4 +/-    0.82       9.2 +/-    0.82  0.040 / 0.030