PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-14:57:30
G10     264.5          37.2                6.5 +/-    1.58       9.9 +/-    1.58  0.030 / 0.040
G13     43.0           19.8                4.0 +/-    0.72       8.8 +/-    0.72  0.040 / 0.030
G15     63.1           51.7                4.9 +/-    0.48       6.1 +/-    0.48  0.080 / 0.070
G16     283.0          12.8                0.9 +/-    3.44       2.3 +/-    3.44  0.070 / 0.070
G20     293.2          59.2                6.0 +/-    0.76       6.9 +/-    0.76  0.110 / 0.340
G21     6.7            71.6                5.2 +/-    0.61       5.4 +/-    0.61  0.120 / 0.250
G24     118.3          13.3                7.0 +/-    2.43      18.1 +/-    2.43  0.090 / 0.230
G27     320.7          14.7                2.4 +/-    3.57       5.9 +/-    3.57  0.090 / 0.250
G29     166.5          32.4                7.8 +/-    0.65      12.9 +/-    0.65  0.040 / 0.080