PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/26-15:27:50
G02     63.6           30.2                6.2 +/-    1.56      10.8 +/-    1.56  0.110 / 0.140
G05     53.1           59.6                7.6 +/-    0.41       8.6 +/-    0.41  0.090 / 0.120
G12     182.5          25.3                9.5 +/-    1.71      18.4 +/-    1.71  0.140 / 0.090
G13     122.7          19.3               10.3 +/-    1.32      23.0 +/-    1.32  0.120 / 0.130
G15     163.1          15.7               11.4 +/-    1.09      27.8 +/-    1.09  0.250 / 0.300
G21     277.0          22.0                7.3 +/-    2.81      15.4 +/-    2.81  0.460 / 0.450
G25     223.0          46.0                9.1 +/-    3.55      12.2 +/-    3.55  0.030 / 0.030
G29     332.8          60.7                7.1 +/-    0.85       8.0 +/-    0.85  0.030 / 0.040