PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/11-18:58:00
G01     292.9          39.5               14.2 +/-    2.84      20.8 +/-    2.84  0.050 / 0.070
G03     311.6          16.7                9.2 +/-    3.44      21.8 +/-    3.44  0.040 / 0.080
G10     118.4          30.5                9.7 +/-    1.56      16.8 +/-    1.56  0.080 / 0.120
G11     268.6          26.4                8.4 +/-    1.75      15.9 +/-    1.75  0.080 / 0.130
G14     20.9           60.0                8.1 +/-    1.20       9.2 +/-    1.20  0.060 / 0.090
G22     313.5          37.0                8.5 +/-    0.90      13.0 +/-    0.90  0.050 / 0.080
G25     68.7           19.0                8.7 +/-    1.17      19.6 +/-    1.17  0.030 / 0.020
G26     158.1          11.7                8.0 +/-   12.14      21.5 +/-   12.14  0.030 / 0.020
G31     140.4          77.9                9.6 +/-    0.59       9.8 +/-    0.59  0.050 / 0.040
G32     49.4           43.2                7.7 +/-    0.81      10.7 +/-    0.81  0.060 / 0.040