PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/05-07:12:30
G07     359.0          65.4                4.1 +/-    0.47       4.4 +/-    0.47  0.050 / 0.070
G08     72.3           50.1                5.2 +/-    0.67       6.5 +/-    0.67  0.050 / 0.070
G09     174.4          52.8                8.7 +/-    1.06      10.6 +/-    1.06  0.040 / 0.040
G11     135.1          22.7                6.6 +/-    0.86      13.7 +/-    0.86  0.030 / 0.040
G23     159.6          28.9                5.9 +/-    1.01      10.6 +/-    1.01  0.050 / 0.110
G27     45.3           24.4                3.5 +/-    1.37       7.0 +/-    1.37  0.050 / 0.130
G28     249.1          38.9                7.8 +/-    1.64      11.5 +/-    1.64  0.040 / 0.040
G30     311.9          43.1                4.0 +/-    1.58       5.5 +/-    1.58  0.040 / 0.060