PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-07:27:50
G07     337.0          59.8                5.8 +/-    0.65       6.6 +/-    0.65  0.090 / 0.280
G08     103.5          52.3                7.4 +/-    1.13       9.1 +/-    1.13  0.090 / 0.420
G09     188.2          73.0                6.1 +/-    0.66       6.4 +/-    0.66  0.050 / 0.090
G11     146.5          14.0                4.2 +/-    2.72      10.6 +/-    2.72  0.040 / 0.080
G23     155.0          39.6                6.9 +/-    0.76      10.1 +/-    0.76  0.050 / 0.070
G27     55.2           31.7                3.7 +/-    0.64       6.3 +/-    0.64  0.050 / 0.080
G28     235.5          23.1                6.2 +/-    2.55      12.6 +/-    2.55  0.030 / 0.040
G30     301.5          34.4                4.3 +/-    1.69       6.9 +/-    1.69  0.040 / 0.040