PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-02:27:50
G01     122.2          13.4                7.0 +/-    2.29      18.1 +/-    2.29  0.030 / 0.030
G07     61.0           69.2                5.3 +/-    0.80       5.6 +/-    0.80  0.030 / 0.030
G08     47.9           35.9                4.4 +/-    0.88       6.9 +/-    0.88  0.060 / 0.080
G09     174.1          28.9                7.2 +/-    0.97      12.9 +/-    0.97  0.050 / 0.080
G11     120.1          38.0                7.2 +/-    1.02      10.8 +/-    1.02  0.060 / 0.110
G13     319.7          15.5                3.6 +/-    1.66       8.8 +/-    1.66  0.060 / 0.100
G17     199.3          18.3                5.8 +/-    1.88      13.3 +/-    1.88  0.070 / 0.140
G28     271.1          47.4                6.9 +/-    1.78       9.0 +/-    1.78  0.060 / 0.110
G30     330.3          59.8                5.0 +/-    0.52       5.7 +/-    0.52  0.150 / 0.340