PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/03-04:58:00
G10     286.2          47.6                6.9 +/-    1.26       9.0 +/-    1.26  0.040 / 0.050
G15     48.3           35.8                4.0 +/-    1.15       6.2 +/-    1.15  0.040 / 0.040
G20     1.4            65.7                7.1 +/-    0.41       7.7 +/-    0.41  0.070 / 0.090
G21     61.5           77.4                7.1 +/-    0.55       7.3 +/-    0.55  0.070 / 0.090
G24     105.3          23.0                5.8 +/-    2.14      11.9 +/-    2.14  0.090 / 0.240
G27     308.0          30.3                7.4 +/-    2.43      12.8 +/-    2.43  0.080 / 0.240
G29     168.9          15.6                8.8 +/-    2.25      21.6 +/-    2.25  0.040 / 0.080
G32     207.4          26.0                8.7 +/-    1.09      16.5 +/-    1.09  0.040 / 0.070