PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/10-04:27:50
G01     68.1           31.5                5.5 +/-    0.66       9.3 +/-    0.66  0.030 / 0.030
G07     137.1          31.3                7.1 +/-    1.46      12.1 +/-    1.46  0.040 / 0.040
G11     55.4           34.8                3.3 +/-    0.39       5.3 +/-    0.39  0.060 / 0.110
G13     272.7          38.8                7.9 +/-    0.90      11.7 +/-    0.90  0.060 / 0.100
G15     299.6          16.7                3.7 +/-    1.99       8.7 +/-    1.99  0.050 / 0.090
G17     231.7          70.2                7.4 +/-    0.91       7.8 +/-    0.91  0.060 / 0.100
G19     223.1          44.6                9.4 +/-    1.32      12.8 +/-    1.32  0.050 / 0.110
G28     1.5            61.4                4.2 +/-    0.70       4.8 +/-    0.70  0.060 / 0.110
G30     136.3          66.2                7.6 +/-    0.56       8.3 +/-    0.56  0.060 / 0.070