PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-03:58:10
G08     304.8          20.7                6.6 +/-    1.41      14.4 +/-    1.41  0.070 / 0.090
G10     343.7          61.5                6.3 +/-    0.47       7.1 +/-    0.47  0.050 / 0.090
G14     221.6          33.5               10.6 +/-    1.99      17.3 +/-    1.99  0.060 / 0.070
G15     48.2           7.5                 2.4 +/-    1.09       7.1 +/-    1.09  0.060 / 0.090
G20     32.4           62.8               10.3 +/-    1.18      11.5 +/-    1.18  0.030 / 0.030
G21     139.6          52.3                8.0 +/-    0.65       9.8 +/-    0.65  0.030 / 0.030
G24     66.3           28.7                4.7 +/-    1.15       8.4 +/-    1.15  0.070 / 0.130
G27     267.3          36.1                9.6 +/-    1.61      15.0 +/-    1.61  0.080 / 0.190
G32     229.5          60.0                9.4 +/-    2.01      10.6 +/-    2.01  0.030 / 0.040