PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-11:13:00
G08     293.4          23.5                5.3 +/-    0.83      10.8 +/-    0.83  0.050 / 0.060
G10     7.1            62.8                4.9 +/-    1.55       5.4 +/-    1.55  0.050 / 0.070
G14     228.5          46.4                7.2 +/-    2.88       9.5 +/-    2.88  0.080 / 0.110
G18     317.5          11.4               -3.6 +/-   16.60      -9.7 +/-   16.60  0.120 / 0.140
G20     64.1           52.6                6.3 +/-    1.26       7.7 +/-    1.26  0.030 / 0.030
G21     145.4          38.1                7.2 +/-    1.40      10.8 +/-    1.40  0.040 / 0.030
G24     55.6           24.7                4.4 +/-    2.29       8.7 +/-    2.29  0.040 / 0.040
G27     258.1          32.4                4.7 +/-    1.65       7.9 +/-    1.65  0.030 / 0.030
G32     240.6          62.5                6.9 +/-    1.10       7.7 +/-    1.10  0.060 / 0.140