PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/06-06:57:40
G07     349.0          63.1                3.0 +/-    0.96       3.3 +/-    0.96  0.060 / 0.090
G08     80.4           51.3                5.0 +/-    0.49       6.3 +/-    0.49  0.050 / 0.080
G09     174.6          58.4                8.1 +/-    0.92       9.4 +/-    0.92  0.040 / 0.040
G11     138.7          19.4                5.3 +/-    1.73      11.9 +/-    1.73  0.030 / 0.040
G23     158.6          34.1                5.6 +/-    0.84       9.0 +/-    0.84  0.060 / 0.080
G27     48.7           27.7                1.4 +/-    1.36       2.5 +/-    1.36  0.060 / 0.100
G28     244.2          35.1                7.2 +/-    0.82      11.3 +/-    0.82  0.040 / 0.030
G30     307.8          39.6                3.9 +/-    0.99       5.7 +/-    0.99  0.050 / 0.040