PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-02:42:40
G01     122.7          13.0                7.3 +/-    2.35      19.0 +/-    2.35  0.030 / 0.040
G07     59.4           69.3                4.5 +/-    0.60       4.8 +/-    0.60  0.030 / 0.040
G08     48.4           36.6                3.7 +/-    0.96       5.6 +/-    0.96  0.030 / 0.030
G09     174.3          29.8                6.4 +/-    0.96      11.2 +/-    0.96  0.030 / 0.030
G11     120.6          37.6                7.3 +/-    0.57      11.0 +/-    0.57  0.040 / 0.080
G13     319.9          15.0                3.1 +/-    1.82       7.8 +/-    1.82  0.070 / 0.060
G17     199.2          17.6                5.3 +/-    1.72      12.3 +/-    1.72  0.070 / 0.100
G28     270.4          47.1                4.1 +/-    2.82       5.4 +/-    2.82  0.060 / 0.100
G30     329.8          59.3                3.8 +/-    0.70       4.3 +/-    0.70  0.100 / 0.120