PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-19:43:00
G02     64.3           29.3                7.7 +/-    0.68      13.7 +/-    0.68  0.110 / 0.240
G05     53.7           60.6                8.3 +/-    0.66       9.4 +/-    0.66  0.140 / 0.230
G12     183.9          25.7               11.1 +/-    0.70      21.3 +/-    0.70  0.070 / 0.110
G13     124.9          19.5               12.0 +/-    2.30      26.7 +/-    2.30  0.070 / 0.130
G15     160.7          16.8               14.5 +/-    3.16      34.4 +/-    3.16  0.060 / 0.080
G20     211.6          68.0                9.5 +/-    0.95      10.2 +/-    0.95  0.040 / 0.080
G21     276.6          22.1                8.1 +/-    1.16      16.9 +/-    1.16  0.100 / 0.250
G25     223.3          45.6                9.5 +/-    1.66      12.6 +/-    1.66  0.080 / 0.260
G29     336.3          64.3               10.3 +/-    0.43      11.3 +/-    0.43  0.030 / 0.050