PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/20-02:43:00
G01     258.4          38.4                7.5 +/-    1.29      11.2 +/-    1.29  0.040 / 0.040
G03     316.5          36.7                3.0 +/-    1.08       4.6 +/-    1.08  0.040 / 0.050
G11     241.2          15.2                5.2 +/-    2.62      12.9 +/-    2.62  0.070 / 0.090
G14     53.1           45.1                2.5 +/-    1.12       3.4 +/-    1.12  0.070 / 0.090
G18     224.2          31.8                5.7 +/-    1.95       9.5 +/-    1.95  0.040 / 0.080
G22     310.5          59.7                5.1 +/-    1.55       5.8 +/-    1.55  0.040 / 0.090
G25     42.8           11.7                2.9 +/-    1.28       7.8 +/-    1.28  0.090 / 0.370
G26     140.5          33.3              -13.7 +/-   33.58     -22.4 +/-   33.58  0.090 / 0.370
G31     43.7           64.1                1.9 +/-    0.49       2.1 +/-    0.49  0.120 / 0.210
G32     72.7           25.7                4.0 +/-    1.86       7.8 +/-    1.86  0.140 / 0.290