PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/17-12:28:10
G05     50.3           13.4                1.3 +/-    1.80       3.3 +/-    1.80  0.080 / 0.140
G10     238.5          14.4                4.8 +/-    2.59      12.1 +/-    2.59  0.050 / 0.150
G13     72.3           36.7                2.5 +/-    0.65       3.8 +/-    0.65  0.040 / 0.040
G15     115.4          54.2                5.6 +/-    0.72       6.8 +/-    0.72  0.030 / 0.040
G16     313.3          12.0               -3.8 +/-   13.66     -10.0 +/-   13.66  0.040 / 0.060
G18     250.3          47.4                6.4 +/-    1.07       8.3 +/-    1.07  0.050 / 0.050
G20     24.6           67.0                3.4 +/-    0.73       3.6 +/-    0.73  0.140 / 0.240
G21     319.8          52.2                4.0 +/-    0.80       4.9 +/-    0.80  0.110 / 0.210
G26     284.9          19.7                3.9 +/-    1.58       8.7 +/-    1.58  0.060 / 0.100
G29     156.5          65.3                5.4 +/-    0.64       5.9 +/-    0.64  0.040 / 0.120