PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/28-21:57:30
G03     223.3          64.0               11.3 +/-    1.74      12.4 +/-    1.74  0.090 / 0.250
G07     252.8          13.5               11.7 +/-    1.03      30.2 +/-    1.03  0.070 / 0.270
G09     307.5          24.6                9.7 +/-    1.25      19.2 +/-    1.25  0.040 / 0.040
G14     104.8          9.5                13.3 +/-    1.95      37.5 +/-    1.95  0.040 / 0.050
G16     116.3          62.6               10.2 +/-    0.75      11.4 +/-    0.75  0.130 / 0.310
G22     192.0          48.7               12.5 +/-    0.72      16.0 +/-    0.72  0.180 / 0.320
G23     322.5          52.4                9.7 +/-    1.25      11.9 +/-    1.25  0.040 / 0.040
G26     63.3           50.5                8.0 +/-    1.45      10.1 +/-    1.45  0.040 / 0.030
G31     54.4           18.8                7.5 +/-    1.45      17.1 +/-    1.45  0.060 / 0.060