PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-00:27:50
G01     124.5          13.8                8.5 +/-    2.53      21.6 +/-    2.53  0.100 / 0.080
G07     62.0           69.0                7.1 +/-    0.41       7.5 +/-    0.41  0.090 / 0.090
G08     49.1           38.6                5.6 +/-    1.22       8.3 +/-    1.22  0.030 / 0.050
G09     178.6          33.6                9.7 +/-    1.20      15.8 +/-    1.20  0.040 / 0.050
G11     117.6          36.5                7.4 +/-    0.64      11.4 +/-    0.64  0.090 / 0.330
G13     320.6          13.5                5.0 +/-    1.87      12.9 +/-    1.87  0.130 / 0.310
G17     200.9          17.2                8.6 +/-    2.14      20.2 +/-    2.14  0.110 / 0.170
G28     282.6          55.0                7.8 +/-    2.74       9.3 +/-    2.74  0.230 / 0.330
G30     344.9          66.4                5.9 +/-    0.55       6.4 +/-    0.55  0.200 / 0.240