PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-23:42:40
G10     266.6          38.1               12.3 +/-    0.90      18.5 +/-    0.90  0.140 / 0.160
G13     42.0           18.5                8.6 +/-    2.98      19.7 +/-    2.98  0.130 / 0.120
G15     62.1           51.9                8.5 +/-    0.69      10.5 +/-    0.69  0.040 / 0.040
G16     277.7          12.5               11.3 +/-    1.78      29.8 +/-    1.78  0.050 / 0.030
G20     270.8          35.5                7.1 +/-    0.69      11.1 +/-    0.69  0.180 / 0.270
G21     358.8          71.1                8.9 +/-    0.68       9.4 +/-    0.68  0.160 / 0.250
G24     119.2          14.1               11.1 +/-    2.03      28.3 +/-    2.03  0.320 / 0.410
G27     318.9          18.3                9.5 +/-    1.76      21.7 +/-    1.76  0.340 / 0.390
G29     168.3          32.7               12.0 +/-    0.92      19.9 +/-    0.92  0.240 / 0.330