PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-13:57:50
G07     34.0           69.6                7.0 +/-    0.95       7.4 +/-    0.95  0.040 / 0.050
G08     55.6           44.0                5.6 +/-    0.97       7.7 +/-    0.97  0.040 / 0.050
G09     177.8          41.2                9.5 +/-    1.86      13.6 +/-    1.86  0.110 / 0.170
G11     124.0          31.8                8.6 +/-    1.01      14.5 +/-    1.01  0.170 / 0.180
G18     109.0          13.6                9.8 +/-    2.97      25.1 +/-    2.97  0.050 / 0.080
G23     160.0          11.7                8.8 +/-    2.18      23.7 +/-    2.18  0.050 / 0.080
G27     38.3           12.0                6.1 +/-    2.73      16.2 +/-    2.73  0.040 / 0.040
G28     267.4          49.5                8.0 +/-    1.05      10.2 +/-    1.05  0.020 / 0.040
G30     326.0          55.3                6.7 +/-    0.89       7.9 +/-    0.89  0.070 / 0.130