PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-02:28:10
G01     121.8          13.7                6.3 +/-    1.52      16.2 +/-    1.52  0.040 / 0.040
G07     62.4           69.1                5.6 +/-    0.54       6.0 +/-    0.54  0.030 / 0.030
G08     47.6           35.6                2.5 +/-    0.62       4.0 +/-    0.62  0.040 / 0.030
G09     174.0          28.5                7.1 +/-    0.80      12.8 +/-    0.80  0.040 / 0.040
G11     119.6          38.2                7.2 +/-    0.87      10.8 +/-    0.87  0.110 / 0.420
G13     319.6          15.9                2.0 +/-    1.68       4.9 +/-    1.68  0.110 / 0.450
G17     199.3          18.7                5.5 +/-    0.81      12.5 +/-    0.81  0.080 / 0.110
G28     271.7          47.6                7.0 +/-    1.81       9.1 +/-    1.81  0.070 / 0.120
G30     330.8          60.2                4.2 +/-    0.81       4.7 +/-    0.81  0.060 / 0.080