PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-16:42:40
G03     218.9          64.4               11.6 +/-    0.88      12.7 +/-    0.88  0.040 / 0.050
G07     252.1          14.3               12.6 +/-    1.61      31.9 +/-    1.61  0.040 / 0.060
G09     305.7          21.1                9.3 +/-    1.78      20.0 +/-    1.78  0.110 / 0.200
G14     103.5          10.5                9.6 +/-    1.75      26.5 +/-    1.75  0.100 / 0.170
G16     129.4          60.9               11.3 +/-    0.74      12.7 +/-    0.74  0.130 / 0.590
G22     189.0          47.9               11.3 +/-    2.19      14.6 +/-    2.19  0.100 / 0.480
G23     322.1          52.0               12.0 +/-    1.35      14.8 +/-    1.35  0.050 / 0.090
G26     67.1           52.5               10.0 +/-    0.59      12.2 +/-    0.59  0.060 / 0.060
G31     54.2           17.9                8.2 +/-    0.69      18.9 +/-    0.69  0.080 / 0.080