PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/22-02:42:40
G01     96.1           30.2                7.2 +/-    1.10      12.6 +/-    1.10  0.040 / 0.040
G07     120.3          50.0                6.4 +/-    0.94       8.1 +/-    0.94  0.040 / 0.040
G08     42.0           12.7                2.6 +/-    2.71       6.9 +/-    2.71  0.200 / 0.220
G11     77.2           42.2                5.4 +/-    1.45       7.6 +/-    1.45  0.110 / 0.220
G13     301.1          33.3                2.6 +/-    1.28       4.2 +/-    1.28  0.030 / 0.040
G17     211.3          48.0                6.4 +/-    0.55       8.2 +/-    0.55  0.050 / 0.040
G19     212.4          23.0                6.5 +/-    1.84      13.2 +/-    1.84  0.020 / 0.040
G28     340.4          61.9                4.0 +/-    0.55       4.5 +/-    0.55  0.030 / 0.040
G30     92.2           76.1                4.8 +/-    0.48       4.9 +/-    0.48  0.080 / 0.070