PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-16:58:10
G08     272.1          19.3                7.7 +/-    2.06      17.3 +/-    2.06  0.110 / 0.130
G10     53.3           60.2                7.0 +/-    0.65       7.9 +/-    0.65  0.200 / 0.130
G11     314.7          13.5                5.2 +/-    2.57      13.4 +/-    2.57  0.120 / 0.310
G14     258.7          63.3                7.9 +/-    0.93       8.7 +/-    0.93  0.140 / 0.370
G18     89.6           36.7                8.1 +/-    1.12      12.5 +/-    1.12  0.100 / 0.140
G21     152.8          15.3               11.0 +/-    2.79      27.3 +/-    2.79  0.090 / 0.500
G24     41.7           13.5                4.8 +/-    4.65      12.4 +/-    4.65  0.130 / 0.130
G27     233.5          18.0                9.3 +/-    3.72      21.5 +/-    3.72  0.130 / 0.150
G31     179.4          26.2               11.7 +/-    1.33      22.2 +/-    1.33  0.040 / 0.050
G32     324.5          75.5                6.9 +/-    0.35       7.1 +/-    0.35  0.050 / 0.040