PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/06-04:58:00
G01     95.7           30.2                7.6 +/-    1.72      13.2 +/-    1.72  0.070 / 0.110
G07     121.2          47.5                7.4 +/-    0.60       9.6 +/-    0.60  0.080 / 0.090
G11     72.4           40.7                5.5 +/-    1.19       7.9 +/-    1.19  0.040 / 0.040
G13     299.5          34.7                5.8 +/-    1.12       9.2 +/-    1.12  0.040 / 0.050
G17     210.1          51.5                7.6 +/-    0.93       9.4 +/-    0.93  0.030 / 0.020
G19     212.6          20.5                6.3 +/-    2.16      13.7 +/-    2.16  0.030 / 0.020
G28     335.0          61.7                5.5 +/-    0.43       6.1 +/-    0.43  0.030 / 0.040
G30     76.6           80.0                5.7 +/-    0.42       5.8 +/-    0.42  0.050 / 0.040