PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-17:12:40
G03     218.7          64.0               10.4 +/-    1.04      11.4 +/-    1.04  0.120 / 0.530
G07     252.5          14.5               12.3 +/-    2.42      31.0 +/-    2.42  0.100 / 0.560
G09     306.1          21.7                8.3 +/-    2.60      17.6 +/-    2.60  0.040 / 0.050
G14     103.9          10.1               10.9 +/-    2.79      30.5 +/-    2.79  0.040 / 0.060
G16     127.3          61.4               11.3 +/-    0.52      12.7 +/-    0.52  0.040 / 0.070
G22     189.2          47.6               10.9 +/-    1.88      14.2 +/-    1.88  0.040 / 0.080
G23     322.4          52.3               12.0 +/-    0.99      14.7 +/-    0.99  0.060 / 0.060
G26     66.5           52.4               10.4 +/-    0.35      12.7 +/-    0.35  0.050 / 0.060
G31     54.4           17.7                8.4 +/-    0.85      19.4 +/-    0.85  0.080 / 0.190