PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/22-13:12:50
G10     262.4          34.9                5.2 +/-    1.47       8.2 +/-    1.47  0.130 / 0.250
G13     44.5           22.4                1.7 +/-    1.19       3.5 +/-    1.19  0.150 / 0.130
G15     62.8           50.3                3.9 +/-    0.58       4.9 +/-    0.58  0.050 / 0.040
G16     285.6          12.7                5.7 +/-    2.10      15.0 +/-    2.10  0.050 / 0.040
G18     296.6          64.5                4.1 +/-    0.69       4.4 +/-    0.69  0.090 / 0.310
G20     48.9           42.2                2.8 +/-    0.87       3.9 +/-    0.87  0.060 / 0.070
G21     2.5            70.8                4.2 +/-    0.97       4.4 +/-    0.97  0.060 / 0.070
G24     124.7          11.5              -16.2 +/-   24.27     -43.8 +/-   24.27  0.220 / 0.440
G27     319.9          16.5                2.9 +/-    1.34       7.0 +/-    1.34  0.190 / 0.460
G29     166.3          33.2                5.7 +/-    1.41       9.3 +/-    1.41  0.090 / 0.220