PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-12:57:30
G05     52.4           10.0                1.2 +/-    3.84       3.4 +/-    3.84  0.100 / 0.330
G10     243.1          22.2                3.8 +/-    1.51       8.0 +/-    1.51  0.240 / 0.380
G13     62.1           32.7                2.9 +/-    1.38       4.8 +/-    1.38  0.120 / 0.400
G15     98.4           56.2                6.4 +/-    1.10       7.5 +/-    1.10  0.130 / 0.400
G16     304.1          15.5                1.8 +/-    1.61       4.4 +/-    1.61  0.070 / 0.130
G20     261.0          47.9                6.3 +/-    2.75       8.1 +/-    2.75  0.070 / 0.190
G21     325.5          54.5                2.7 +/-    0.62       3.3 +/-    0.62  0.030 / 0.030
G26     277.8          18.2                3.0 +/-    1.28       6.8 +/-    1.28  0.030 / 0.030
G29     160.2          61.8                6.7 +/-    0.58       7.5 +/-    0.58  0.050 / 0.050