PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-15:27:50
G02     65.0           27.7                5.6 +/-    0.91      10.2 +/-    0.91  0.030 / 0.030
G05     52.5           57.7                7.1 +/-    0.60       8.2 +/-    0.60  0.030 / 0.030
G12     184.9          27.3               11.9 +/-    0.72      22.0 +/-    0.72  0.040 / 0.110
G13     124.9          19.1                9.9 +/-    2.42      22.2 +/-    2.42  0.050 / 0.110
G15     159.7          17.1               11.7 +/-    1.61      27.7 +/-    1.61  0.100 / 0.180
G20     212.5          65.3                9.6 +/-    0.68      10.4 +/-    0.68  0.070 / 0.190
G21     277.3          24.0                5.1 +/-    1.38      10.3 +/-    1.38  0.030 / 0.050
G25     227.2          47.0                8.1 +/-    1.25      10.7 +/-    1.25  0.030 / 0.050
G29     339.4          66.0                5.0 +/-    0.73       5.5 +/-    0.73  0.130 / 0.290