PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-06:28:10
G01     125.9          10.8               -1.4 +/-   31.82      -3.8 +/-   31.82  0.030 / 0.050
G07     53.2           69.2                5.3 +/-    0.59       5.6 +/-    0.59  0.030 / 0.040
G08     52.0           41.4                2.7 +/-    0.97       3.8 +/-    0.97  0.050 / 0.070
G09     176.5          35.8                6.8 +/-    0.64      10.6 +/-    0.64  0.070 / 0.100
G11     121.8          35.7                6.8 +/-    0.95      10.6 +/-    0.95  0.030 / 0.030
G13     320.8          12.1               -1.1 +/-   14.33      -2.9 +/-   14.33  0.020 / 0.030
G17     199.6          12.7                4.1 +/-    3.41      10.7 +/-    3.41  0.120 / 0.100
G28     267.1          46.1                6.4 +/-    3.53       8.5 +/-    3.53  0.130 / 0.110
G30     328.4          57.9                5.1 +/-    0.83       5.9 +/-    0.83  0.040 / 0.040