PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/06-12:12:30
G02     205.2          34.3                5.1 +/-    1.60       8.1 +/-    1.60  0.060 / 0.070
G06     152.5          72.3                5.1 +/-    1.06       5.3 +/-    1.06  0.050 / 0.070
G12     309.5          19.4                4.4 +/-    2.18       9.7 +/-    2.18  0.040 / 0.020
G17     40.1           45.6                2.3 +/-    0.27       3.0 +/-    0.27  0.040 / 0.030
G19     356.8          65.5                2.4 +/-    0.95       2.6 +/-    0.95  0.110 / 0.170
G24     291.8          41.3                3.5 +/-    0.78       4.9 +/-    0.78  0.130 / 0.210
G28     104.4          30.4                5.8 +/-    0.52      10.0 +/-    0.52  0.050 / 0.040