PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/12-04:27:50
G10     290.4          49.3                8.9 +/-    0.89      11.4 +/-    0.89  0.050 / 0.100
G15     47.3           33.4                5.2 +/-    0.48       8.5 +/-    0.48  0.070 / 0.110
G20     355.1          65.8                6.6 +/-    0.58       7.2 +/-    0.58  0.040 / 0.040
G21     75.5           76.9                8.9 +/-    0.91       9.1 +/-    0.91  0.040 / 0.050
G24     102.0          24.5                6.6 +/-    1.29      13.1 +/-    1.29  0.040 / 0.050
G27     305.2          32.0                8.5 +/-    1.11      14.4 +/-    1.11  0.040 / 0.050
G29     168.8          12.7                7.5 +/-    1.16      19.6 +/-    1.16  0.040 / 0.070
G32     208.4          29.0               11.5 +/-    0.73      20.6 +/-    0.73  0.050 / 0.080