PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-18:28:00
G01     291.4          39.9               10.0 +/-    1.44      14.6 +/-    1.44  0.040 / 0.080
G03     312.1          18.1                9.5 +/-    1.39      21.9 +/-    1.39  0.050 / 0.090
G10     119.4          29.5               10.2 +/-    0.86      18.1 +/-    0.86  0.080 / 0.110
G11     267.5          26.0               11.0 +/-    1.49      21.0 +/-    1.49  0.070 / 0.120
G14     22.4           59.4                9.1 +/-    0.42      10.4 +/-    0.42  0.040 / 0.080
G22     313.8          38.3                9.1 +/-    1.87      13.6 +/-    1.87  0.060 / 0.090
G25     67.5           19.0               10.2 +/-    0.96      23.0 +/-    0.96  0.020 / 0.020
G26     157.2          12.8               13.5 +/-    4.40      35.5 +/-    4.40  0.030 / 0.020
G31     132.8          78.8               10.7 +/-    0.46      10.9 +/-    0.46  0.040 / 0.070
G32     50.7           42.2                8.1 +/-    0.69      11.4 +/-    0.69  0.040 / 0.060