PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-09:42:50
G07     338.7          60.3                4.7 +/-    0.95       5.4 +/-    0.95  0.110 / 0.290
G08     105.3          52.5                6.4 +/-    0.50       7.8 +/-    0.50  0.080 / 0.260
G09     191.3          73.8                4.8 +/-    1.08       5.0 +/-    1.08  0.040 / 0.100
G11     145.9          14.1                3.7 +/-    3.80       9.5 +/-    3.80  0.050 / 0.080
G23     154.4          38.1                5.2 +/-    1.55       7.8 +/-    1.55  0.030 / 0.040
G27     55.4           31.9                3.8 +/-    0.67       6.5 +/-    0.67  0.040 / 0.030
G28     235.6          23.7                5.3 +/-    1.64      10.7 +/-    1.64  0.120 / 0.510
G30     302.3          35.6                4.3 +/-    1.32       6.7 +/-    1.32  0.160 / 0.560