PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-13:12:40
G10     249.0          24.8                2.1 +/-    1.58       4.1 +/-    1.58  0.030 / 0.040
G13     56.0           31.8                2.2 +/-    0.57       3.8 +/-    0.57  0.040 / 0.050
G15     87.3           56.8                2.3 +/-    0.37       2.7 +/-    0.37  0.040 / 0.060
G16     300.2          14.3                4.5 +/-    1.76      11.4 +/-    1.76  0.040 / 0.040
G18     268.9          57.1                5.3 +/-    0.79       6.2 +/-    0.79  0.120 / 0.380
G20     38.0           54.0                0.7 +/-    0.48       0.8 +/-    0.48  0.140 / 0.420
G21     337.0          61.7                0.8 +/-    0.48       0.8 +/-    0.48  0.120 / 0.320
G26     270.8          16.1                5.0 +/-    1.67      12.2 +/-    1.67  0.110 / 0.310
G29     162.8          49.0                3.8 +/-    0.96       4.9 +/-    0.96  0.070 / 0.130