PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/04-14:43:00
G10     266.2          39.4                7.8 +/-    1.08      11.5 +/-    1.08  0.130 / 0.210
G13     42.0           17.9                5.2 +/-    3.13      12.0 +/-    3.13  0.110 / 0.140
G15     57.9           46.6                5.6 +/-    0.71       7.4 +/-    0.71  0.190 / 0.390
G16     279.4          13.2                4.7 +/-    2.00      12.3 +/-    2.00  0.170 / 0.460
G20     301.0          61.8                7.1 +/-    0.61       8.0 +/-    0.61  0.050 / 0.100
G21     2.8            71.1                5.8 +/-    0.48       6.1 +/-    0.48  0.060 / 0.120
G24     123.3          13.3                9.6 +/-    1.82      24.9 +/-    1.82  0.040 / 0.040
G27     319.3          17.9                5.6 +/-    1.96      13.0 +/-    1.96  0.060 / 0.040
G29     167.2          33.8                7.9 +/-    1.13      12.8 +/-    1.13  0.320 / 0.300