PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-16:28:00
G02     70.1           23.7               11.2 +/-    1.00      22.5 +/-    1.00  0.030 / 0.040
G05     47.8           51.9                9.3 +/-    0.79      11.5 +/-    0.79  0.030 / 0.050
G12     183.3          20.6               11.7 +/-    0.77      25.5 +/-    0.77  0.040 / 0.040
G13     119.3          23.6               12.3 +/-    1.31      24.8 +/-    1.31  0.040 / 0.040
G15     156.1          22.6               13.4 +/-    1.36      27.6 +/-    1.36  0.070 / 0.140
G18     222.0          12.7               10.0 +/-    2.25      26.4 +/-    2.25  0.120 / 0.180
G20     219.1          73.0               12.1 +/-    0.46      12.6 +/-    0.46  0.060 / 0.220
G21     282.7          27.5               10.3 +/-    1.64      19.1 +/-    1.64  0.080 / 0.190
G25     220.1          41.1               13.4 +/-    1.89      19.1 +/-    1.89  0.070 / 0.250
G29     347.7          72.9               12.1 +/-    0.65      12.6 +/-    0.65  0.090 / 0.220