PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-20:13:00
G10     266.2          38.0               13.0 +/-    0.63      19.6 +/-    0.63  0.090 / 0.180
G13     42.2           18.7                9.6 +/-    0.98      21.7 +/-    0.98  0.090 / 0.150
G15     64.1           53.6               10.4 +/-    0.43      12.6 +/-    0.43  0.210 / 0.410
G16     279.3          12.5                9.4 +/-    2.81      24.7 +/-    2.81  0.150 / 0.430
G20     296.0          60.0                9.6 +/-    0.94      10.9 +/-    0.94  0.040 / 0.050
G21     1.9            71.4               11.8 +/-    0.53      12.4 +/-    0.53  0.050 / 0.050
G24     118.4          14.1               13.7 +/-    2.19      34.8 +/-    2.19  0.080 / 0.230
G27     319.5          17.2                9.4 +/-    1.00      22.1 +/-    1.00  0.080 / 0.220
G29     167.8          32.4               13.2 +/-    1.21      22.0 +/-    1.21  0.140 / 0.320