PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-13:58:00
G10     264.3          38.3                5.7 +/-    1.29       8.5 +/-    1.29  0.290 / 0.300
G13     42.9           19.2                4.9 +/-    3.93      11.1 +/-    3.93  0.160 / 0.270
G15     59.5           47.7                5.6 +/-    0.40       7.3 +/-    0.40  0.150 / 0.550
G16     281.2          13.7                2.2 +/-    2.34       5.7 +/-    2.34  0.120 / 0.410
G20     297.8          61.2                6.1 +/-    0.83       6.8 +/-    0.83  0.070 / 0.070
G21     359.6          70.1                4.9 +/-    0.49       5.2 +/-    0.49  0.090 / 0.090
G24     124.7          12.3                7.1 +/-    3.05      18.8 +/-    3.05  0.070 / 0.070
G27     320.0          16.5                4.2 +/-    2.69      10.0 +/-    2.69  0.050 / 0.090
G29     166.9          35.7                7.5 +/-    1.17      11.8 +/-    1.17  0.040 / 0.040