PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-22:27:50
G03     204.5          48.4                8.9 +/-    0.98      11.5 +/-    0.98  0.100 / 0.130
G07     265.7          22.3                9.8 +/-    2.06      20.4 +/-    2.06  0.120 / 0.140
G09     317.5          43.0                6.6 +/-    0.99       9.2 +/-    0.99  0.030 / 0.040
G16     67.3           59.3                5.9 +/-    0.54       6.7 +/-    0.54  0.030 / 0.040
G22     186.7          31.0                8.5 +/-    1.80      14.6 +/-    1.80  0.040 / 0.070
G23     340.9          69.1                6.1 +/-    0.55       6.5 +/-    0.55  0.050 / 0.050
G26     47.2           34.4                5.2 +/-    1.64       8.3 +/-    1.64  0.040 / 0.050
G27     125.7          17.5               10.3 +/-    2.14      24.0 +/-    2.14  0.040 / 0.050