PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-20:58:00
G01     289.7          40.3                3.7 +/-    2.16       5.3 +/-    2.16  0.040 / 0.090
G03     312.2          17.7                9.3 +/-    1.62      21.7 +/-    1.62  0.050 / 0.080
G10     120.4          28.6               11.1 +/-    0.74      20.0 +/-    0.74  0.020 / 0.020
G11     264.9          26.0                9.3 +/-    2.45      17.8 +/-    2.45  0.030 / 0.020
G14     25.7           58.1                8.4 +/-    1.42       9.7 +/-    1.42  0.040 / 0.040
G22     313.8          38.5                6.9 +/-    1.21      10.2 +/-    1.21  0.050 / 0.040
G25     65.6           18.8                7.6 +/-    1.85      17.1 +/-    1.85  0.060 / 0.040
G26     157.7          13.0               11.0 +/-    2.43      28.7 +/-    2.43  0.040 / 0.050
G31     135.6          79.4               11.2 +/-    0.42      11.3 +/-    0.42  0.190 / 0.200
G32     51.1           42.2                6.8 +/-    1.56       9.5 +/-    1.56  0.100 / 0.170