PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-13:43:00
G02     73.0           20.9                3.9 +/-    2.85       8.3 +/-    2.85  0.030 / 0.050
G05     46.2           47.1                4.3 +/-    0.59       5.7 +/-    0.59  0.030 / 0.050
G12     182.9          18.0                5.7 +/-    0.79      13.1 +/-    0.79  0.040 / 0.030
G13     116.2          25.5                6.7 +/-    2.03      12.9 +/-    2.03  0.040 / 0.030
G15     153.7          25.5                6.7 +/-    1.04      13.0 +/-    1.04  0.140 / 0.160
G18     223.3          16.2                3.0 +/-    5.29       7.2 +/-    5.29  0.180 / 0.210
G20     224.4          74.5                8.6 +/-    0.64       8.9 +/-    0.64  0.060 / 0.150
G21     286.5          31.2                5.9 +/-    2.15      10.0 +/-    2.15  0.060 / 0.120
G25     218.9          38.9                8.1 +/-    1.91      12.0 +/-    1.91  0.130 / 0.160
G29     348.1          74.4                6.4 +/-    0.68       6.6 +/-    0.68  0.190 / 0.140