PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-18:58:10
G01     293.5          41.4               27.5 +/-    1.80      39.1 +/-    1.80  0.070 / 0.110
G03     310.2          12.6                7.0 +/-    5.98      18.5 +/-    5.98  0.090 / 0.110
G10     116.4          29.6               10.6 +/-    1.56      18.7 +/-    1.56  0.040 / 0.050
G11     274.0          24.9               10.6 +/-    2.22      20.8 +/-    2.22  0.040 / 0.050
G14     9.2            63.5                7.9 +/-    0.47       8.8 +/-    0.47  0.070 / 0.090
G22     313.2          33.9                5.8 +/-    0.99       9.4 +/-    0.99  0.060 / 0.090
G25     71.1           18.0                8.1 +/-    1.34      18.6 +/-    1.34  0.390 / 0.350
G26     159.5          10.3              -17.3 +/-   24.00     -48.0 +/-   24.00  0.240 / 0.260
G31     148.2          75.4                9.3 +/-    0.55       9.6 +/-    0.55  0.070 / 0.150
G32     48.4           43.3                7.8 +/-    0.87      10.8 +/-    0.87  0.060 / 0.130