PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/18-09:27:50
G01     58.2           29.9                3.0 +/-    0.42       5.3 +/-    0.42  0.040 / 0.050
G07     142.9          19.5                4.9 +/-    1.25      10.9 +/-    1.25  0.030 / 0.040
G11     46.8           21.1                1.6 +/-    2.04       3.5 +/-    2.04  0.080 / 0.170
G13     259.9          34.8                4.8 +/-    1.27       7.7 +/-    1.27  0.070 / 0.210
G15     295.7          14.9                2.2 +/-    2.00       5.4 +/-    2.00  0.040 / 0.100
G17     274.8          79.2                5.3 +/-    0.74       5.3 +/-    0.74  0.060 / 0.090
G18     40.0           10.3                1.4 +/-    2.66       4.0 +/-    2.66  0.190 / 0.430
G19     233.5          48.5                6.3 +/-    1.01       8.1 +/-    1.01  0.120 / 0.430
G28     36.6           56.8                3.5 +/-    0.43       4.0 +/-    0.43  0.070 / 0.140
G30     145.4          52.3                6.3 +/-    0.80       7.7 +/-    0.80  0.080 / 0.130