PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-00:27:40
G08     300.2          22.7                7.9 +/-    1.01      16.2 +/-    1.01  0.100 / 0.080
G10     349.6          62.1                7.4 +/-    0.41       8.3 +/-    0.41  0.070 / 0.090
G14     223.2          38.0                7.8 +/-    2.10      11.7 +/-    2.10  0.040 / 0.050
G20     326.7          58.8               24.6 +/-    1.03      28.3 +/-    1.03  0.050 / 0.070
G21     141.6          50.0                8.5 +/-    0.90      10.7 +/-    0.90  0.080 / 0.120
G24     62.7           27.5                6.8 +/-    1.47      12.6 +/-    1.47  0.080 / 0.100
G27     264.5          35.3                8.9 +/-    1.64      14.0 +/-    1.64  0.130 / 0.130
G32     232.8          62.4                8.1 +/-    1.61       9.0 +/-    1.61  0.150 / 0.160