PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-17:28:10
G02     216.9          58.3                9.9 +/-    0.64      11.4 +/-    0.64  0.050 / 0.080
G06     54.8           72.0               10.0 +/-    1.66      10.5 +/-    1.66  0.050 / 0.070
G12     319.9          40.4               10.0 +/-    1.19      14.5 +/-    1.19  0.040 / 0.050
G17     58.2           31.4                8.6 +/-    0.51      14.7 +/-    0.51  0.060 / 0.040
G19     36.1           51.4                8.7 +/-    0.64      10.8 +/-    0.64  0.130 / 0.300
G24     262.8          41.8               10.5 +/-    0.83      14.9 +/-    0.83  0.110 / 0.450
G28     122.8          13.5                9.4 +/-    1.73      24.3 +/-    1.73  0.060 / 0.080