PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/10-12:57:40
G07     311.4          50.4                5.9 +/-    1.26       7.4 +/-    1.26  0.040 / 0.060
G08     129.7          39.9                7.5 +/-    0.55      11.0 +/-    0.55  0.050 / 0.060
G09     306.8          76.9                5.1 +/-    0.92       5.2 +/-    0.92  0.050 / 0.070
G16     42.1           25.6                4.8 +/-    0.74       9.2 +/-    0.74  0.050 / 0.080
G23     143.1          61.8                8.1 +/-    0.59       9.0 +/-    0.59  0.030 / 0.050
G27     81.5           37.4                4.0 +/-    0.76       6.1 +/-    0.76  0.030 / 0.050
G30     286.9          24.7                7.4 +/-    1.12      14.6 +/-    1.12  0.030 / 0.040