PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-10:12:30
G02     212.1          52.6                6.8 +/-    0.57       8.3 +/-    0.57  0.040 / 0.060
G06     82.0           78.9                4.8 +/-    0.46       4.9 +/-    0.46  0.050 / 0.060
G12     316.4          31.2                4.3 +/-    1.17       7.4 +/-    1.17  0.090 / 0.090
G17     53.9           34.0                3.5 +/-    1.10       5.7 +/-    1.10  0.060 / 0.100
G19     27.6           55.3                4.3 +/-    1.78       5.1 +/-    1.78  0.020 / 0.020
G24     268.2          43.7                4.7 +/-    2.28       6.4 +/-    2.28  0.030 / 0.020
G28     117.8          19.6                5.5 +/-    1.68      12.1 +/-    1.68  0.040 / 0.030