PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-22:42:40
G01     233.6          23.7               10.0 +/-    2.21      20.2 +/-    2.21  0.030 / 0.030
G03     304.5          60.6                8.1 +/-    1.31       9.1 +/-    1.31  0.040 / 0.030
G14     78.3           29.7                8.0 +/-    1.77      14.0 +/-    1.77  0.050 / 0.040
G16     157.5          33.7               11.1 +/-    0.83      18.1 +/-    0.83  0.040 / 0.070
G22     252.3          75.4                9.5 +/-    0.62       9.8 +/-    0.62  0.210 / 0.180
G23     299.9          30.2                9.9 +/-    1.16      17.3 +/-    1.16  0.130 / 0.200
G26     117.3          50.9               11.2 +/-    0.56      14.0 +/-    0.56  0.070 / 0.130
G31     41.4           42.6                7.4 +/-    1.11      10.3 +/-    1.11  0.090 / 0.130
G32     91.9           12.6                8.2 +/-    2.56      21.6 +/-    2.56  0.040 / 0.030