PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-11:58:00
G01     252.8          36.0                7.7 +/-    2.40      12.0 +/-    2.40  0.040 / 0.070
G03     316.2          44.3                4.4 +/-    0.48       6.0 +/-    0.48  0.050 / 0.070
G11     239.6          13.2                4.1 +/-    2.23      10.7 +/-    2.23  0.030 / 0.030
G14     55.1           45.3                5.5 +/-    1.20       7.4 +/-    1.20  0.030 / 0.030
G18     222.7          28.9                6.5 +/-    2.30      11.7 +/-    2.30  0.080 / 0.090
G22     303.2          69.9                5.0 +/-    0.61       5.3 +/-    0.61  0.060 / 0.090
G25     41.3           11.3                5.3 +/-    1.98      14.4 +/-    1.98  0.130 / 0.300
G26     135.1          37.6                6.3 +/-    1.10       9.6 +/-    1.10  0.190 / 0.200
G31     41.6           57.5                4.3 +/-    0.55       5.0 +/-    0.55  0.130 / 0.370
G32     77.0           22.2                3.9 +/-    1.85       8.0 +/-    1.85  0.080 / 0.260