PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-00:12:30
G01     121.0          16.6                8.8 +/-    3.24      21.0 +/-    3.24  0.080 / 0.070
G07     74.2           67.6                7.1 +/-    0.43       7.7 +/-    0.43  0.060 / 0.060
G08     46.7           35.3                7.3 +/-    1.19      11.6 +/-    1.19  0.040 / 0.100
G09     178.1          29.2                9.9 +/-    1.58      17.7 +/-    1.58  0.030 / 0.060
G11     112.9          38.7                9.0 +/-    0.76      13.4 +/-    0.76  0.160 / 0.230
G13     319.0          16.9                6.6 +/-    2.31      15.6 +/-    2.31  0.190 / 0.190
G17     201.7          21.2                9.2 +/-    2.59      19.7 +/-    2.59  0.180 / 0.330
G28     289.9          56.9                7.6 +/-    1.55       8.8 +/-    1.55  0.180 / 0.370