PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/12-03:12:30
G10     252.9          28.5               13.4 +/-    2.55      24.2 +/-    2.55  0.050 / 0.050
G13     51.3           28.4                8.3 +/-    1.51      15.0 +/-    1.51  0.040 / 0.050
G15     82.4           57.4               10.4 +/-    0.31      12.1 +/-    0.31  0.110 / 0.510
G16     292.0          15.5                7.7 +/-    1.47      18.9 +/-    1.47  0.120 / 0.560
G20     278.8          57.4               12.5 +/-    0.67      14.5 +/-    0.67  0.070 / 0.140
G21     336.1          61.6               10.7 +/-    0.52      12.0 +/-    0.52  0.070 / 0.120
G26     263.9          14.6               11.2 +/-    0.98      28.1 +/-    0.98  0.070 / 0.180
G29     165.9          47.8               13.5 +/-    1.23      17.5 +/-    1.23  0.060 / 0.150