PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-04:12:50
G01     68.3           32.5                5.7 +/-    0.66       9.5 +/-    0.66  0.070 / 0.110
G07     138.3          26.6                9.0 +/-    0.83      16.9 +/-    0.83  0.050 / 0.100
G11     51.2           28.0                2.0 +/-    1.11       3.6 +/-    1.11  0.110 / 0.370
G13     271.3          37.7                7.5 +/-    1.85      11.4 +/-    1.85  0.110 / 0.290
G15     301.7          15.1                0.0 +/-    1.90       0.0 +/-    1.90  0.070 / 0.110
G17     239.0          73.8                8.6 +/-    0.60       8.9 +/-    0.60  0.070 / 0.100
G18     44.7           14.6                2.4 +/-    2.11       6.1 +/-    2.11  0.060 / 0.050
G19     225.2          42.0                7.9 +/-    1.56      11.1 +/-    1.56  0.060 / 0.040
G28     18.6           59.7                6.0 +/-    0.69       6.9 +/-    0.69  0.040 / 0.040
G30     137.8          61.2                9.1 +/-    0.54      10.2 +/-    0.54  0.040 / 0.040