PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/30-05:57:50
G08     293.5          22.8                4.6 +/-    0.99       9.4 +/-    0.99  0.070 / 0.100
G10     12.2           62.8                4.2 +/-    0.54       4.6 +/-    0.54  0.100 / 0.110
G14     230.1          47.5                8.4 +/-    1.28      11.0 +/-    1.28  0.040 / 0.040
G18     317.8          11.7               -1.2 +/-   15.80      -3.2 +/-   15.80  0.030 / 0.030
G20     66.6           51.7                5.5 +/-    0.40       6.8 +/-    0.40  0.070 / 0.090
G24     55.1           24.9                5.6 +/-    0.93      11.1 +/-    0.93  0.060 / 0.100
G27     254.7          31.6                6.7 +/-    2.28      11.4 +/-    2.28  0.060 / 0.130
G32     244.4          65.3                6.7 +/-    0.57       7.3 +/-    0.57  0.060 / 0.100