PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-02:43:10
G01     123.8          12.1               19.4 +/-    2.63      51.7 +/-    2.63  0.040 / 0.040
G07     55.2           69.6                6.7 +/-    0.57       7.1 +/-    0.57  0.030 / 0.030
G08     49.3           37.7               19.9 +/-    1.28      30.1 +/-    1.28  0.080 / 0.050
G09     174.4          31.2                6.7 +/-    1.60      11.4 +/-    1.60  0.060 / 0.050
G11     122.0          36.8                8.4 +/-    0.90      12.9 +/-    0.90  0.070 / 0.090
G13     320.3          13.8                1.6 +/-    3.64       4.2 +/-    3.64  0.080 / 0.100
G17     199.1          16.2                6.6 +/-    2.17      16.1 +/-    2.17  0.110 / 0.170
G28     268.6          46.3                7.8 +/-    3.53      10.3 +/-    3.53  0.140 / 0.170
G30     328.4          58.2                6.3 +/-    0.71       7.2 +/-    0.71  0.070 / 0.110