PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/20-02:12:40
G01     114.0          21.5                7.2 +/-    1.89      15.4 +/-    1.89  0.060 / 0.050
G07     93.7           63.2                5.3 +/-    0.88       5.9 +/-    0.88  0.050 / 0.060
G08     43.4           27.5                1.9 +/-    1.78       3.5 +/-    1.78  0.030 / 0.030
G09     176.8          21.2                5.6 +/-    1.40      11.9 +/-    1.40  0.040 / 0.030
G11     101.4          41.6                6.6 +/-    0.72       9.4 +/-    0.72  0.110 / 0.110
G13     315.2          22.8                2.4 +/-    1.15       5.0 +/-    1.15  0.130 / 0.080
G17     203.5          30.2                5.1 +/-    1.69       8.8 +/-    1.69  0.090 / 0.100
G28     305.0          59.6                3.3 +/-    0.96       3.7 +/-    0.96  0.100 / 0.130
G30     10.8           74.7                4.6 +/-    0.89       4.8 +/-    0.89  0.170 / 0.220