PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-07:43:10
G08     313.3          16.2                4.4 +/-    3.42      10.6 +/-    3.42  0.140 / 0.300
G10     328.6          59.4                2.9 +/-    0.67       3.4 +/-    0.67  0.110 / 0.240
G14     217.7          25.1                5.6 +/-    1.90      10.8 +/-    1.90  0.030 / 0.050
G15     46.6           11.7                1.9 +/-    2.40       5.2 +/-    2.40  0.040 / 0.050
G20     66.1           41.6                4.6 +/-    0.71       6.6 +/-    0.71  0.070 / 0.070
G21     132.6          58.8                6.7 +/-    0.60       7.7 +/-    0.60  0.080 / 0.070
G24     75.6           30.0                4.2 +/-    0.73       7.3 +/-    0.73  0.050 / 0.090
G27     276.3          37.6                5.3 +/-    1.12       8.1 +/-    1.12  0.060 / 0.090
G32     222.0          52.6                7.3 +/-    1.59       8.9 +/-    1.59  0.030 / 0.040