PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-09:42:50
G07     348.5          63.0                3.4 +/-    0.34       3.7 +/-    0.34  0.100 / 0.190
G08     95.5           54.0                5.5 +/-    0.55       6.7 +/-    0.55  0.090 / 0.180
G09     185.2          67.7                4.3 +/-    0.35       4.6 +/-    0.35  0.030 / 0.030
G11     142.3          17.8                3.5 +/-    1.72       8.1 +/-    1.72  0.040 / 0.030
G23     156.2          32.4                4.5 +/-    0.69       7.6 +/-    0.69  0.080 / 0.110
G27     50.4           28.7                2.7 +/-    2.37       4.8 +/-    2.37  0.080 / 0.150
G28     239.9          28.1                4.0 +/-    2.28       7.3 +/-    2.28  0.040 / 0.030
G30     306.7          39.4                2.5 +/-    1.39       3.7 +/-    1.39  0.030 / 0.040