PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-02:58:10
G01     48.6           24.4                2.9 +/-    0.97       5.8 +/-    0.97  0.030 / 0.030
G06     179.2          25.1                6.7 +/-    0.87      13.1 +/-    0.87  0.020 / 0.030
G07     146.9          10.9                5.4 +/-    4.45      14.8 +/-    4.45  0.030 / 0.070
G11     44.9           15.6                2.0 +/-    1.47       4.9 +/-    1.47  0.030 / 0.070
G13     249.5          29.3                4.7 +/-    3.08       8.4 +/-    3.08  0.100 / 0.280
G15     281.0          15.7                4.2 +/-    1.80      10.2 +/-    1.80  0.090 / 0.270
G17     317.7          77.8                5.3 +/-    0.58       5.4 +/-    0.58  0.180 / 0.210
G19     250.7          62.0                5.3 +/-    0.90       5.9 +/-    0.90  0.170 / 0.240
G28     56.2           51.7                3.8 +/-    0.30       4.7 +/-    0.30  0.170 / 0.460
G30     149.4          35.2                5.8 +/-    1.06       9.1 +/-    1.06  0.160 / 0.550