PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-01:42:50
G10     264.7          36.0               10.1 +/-    1.04      15.8 +/-    1.04  0.230 / 0.130
G13     43.4           21.1                6.7 +/-    1.78      14.4 +/-    1.78  0.080 / 0.080
G15     64.0           52.6                8.4 +/-    1.98      10.3 +/-    1.98  0.180 / 0.210
G16     282.3          12.1                8.6 +/-   14.13      22.9 +/-   14.13  0.110 / 0.190
G18     293.7          62.6                1.3 +/-   32.21       1.4 +/-   32.21  0.160 / 0.400
G20     53.9           34.8                7.1 +/-    1.55      11.3 +/-    1.55  0.150 / 0.410
G21     357.4          70.6               10.2 +/-    0.79      10.7 +/-    0.79  0.110 / 0.050
G24     123.1          12.7                9.0 +/-    1.95      23.8 +/-    1.95  0.040 / 0.050
G27     318.6          18.8                8.7 +/-    2.06      19.7 +/-    2.06  0.060 / 0.120
G29     167.2          31.4               11.2 +/-    0.95      19.0 +/-    0.95  0.050 / 0.100