PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-12:42:50
G02     217.6          62.9                9.7 +/-    0.78      10.8 +/-    0.78  0.100 / 0.430
G06     55.5           75.3                5.7 +/-    0.99       5.8 +/-    0.99  0.180 / 0.360
G12     319.1          37.2                3.4 +/-    1.27       5.1 +/-    1.27  0.040 / 0.090
G17     60.9           29.1                2.2 +/-    0.76       4.0 +/-    0.76  0.050 / 0.100
G19     44.2           46.2                2.7 +/-    0.82       3.5 +/-    0.82  0.030 / 0.080
G24     264.4          40.9                8.5 +/-    1.06      12.2 +/-    1.06  0.040 / 0.070
G28     124.7          11.1                6.4 +/-    1.99      17.4 +/-    1.99  0.160 / 0.130