PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/05-16:27:40
G10     261.7          34.3               10.5 +/-    1.33      17.0 +/-    1.33  0.230 / 0.290
G13     45.1           23.1                7.3 +/-    2.97      14.9 +/-    2.97  0.160 / 0.200
G15     63.9           51.0               10.0 +/-    0.57      12.5 +/-    0.57  0.270 / 0.340
G16     288.5          12.4                9.9 +/-    2.47      26.2 +/-    2.47  0.170 / 0.260
G18     293.5          63.7               10.5 +/-    0.97      11.6 +/-    0.97  0.060 / 0.080
G20     49.8           40.8                7.5 +/-    0.80      10.8 +/-    0.80  0.060 / 0.090
G21     5.7            71.1               10.5 +/-    0.44      11.0 +/-    0.44  0.190 / 0.430
G24     125.4          11.0               -6.2 +/-   39.40     -17.0 +/-   39.40  0.210 / 0.470
G27     320.0          16.2                7.3 +/-    3.20      17.6 +/-    3.20  0.040 / 0.030
G29     165.3          31.9               12.6 +/-    1.53      21.2 +/-    1.53  0.040 / 0.030