PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-16:27:30
G02     64.2           30.0                7.0 +/-    1.20      12.3 +/-    1.20  0.050 / 0.080
G05     52.0           58.8                6.5 +/-    0.56       7.4 +/-    0.56  0.060 / 0.080
G12     181.9          23.7                9.0 +/-    3.56      18.1 +/-    3.56  0.100 / 0.250
G13     121.7          20.1               11.6 +/-    1.85      25.5 +/-    1.85  0.080 / 0.200
G15     163.0          16.3               11.3 +/-    2.27      27.2 +/-    2.27  0.070 / 0.180
G21     277.8          22.3                7.4 +/-    1.88      15.3 +/-    1.88  0.080 / 0.210
G25     222.6          45.2                7.4 +/-    1.15      10.0 +/-    1.15  0.090 / 0.220
G29     333.3          61.5                7.3 +/-    0.92       8.2 +/-    0.92  0.060 / 0.190