PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-16:27:50
G02     65.8           27.3               11.0 +/-    0.60      20.4 +/-    0.60  0.030 / 0.040
G05     51.7           57.2               11.9 +/-    0.44      13.9 +/-    0.44  0.030 / 0.050
G12     184.5          25.9               17.1 +/-    1.24      32.7 +/-    1.24  0.040 / 0.050
G13     124.0          19.9               18.2 +/-    1.89      40.0 +/-    1.89  0.030 / 0.040
G15     159.3          18.0               18.5 +/-    1.20      42.8 +/-    1.20  0.050 / 0.150
G20     213.1          67.2               15.7 +/-    0.83      16.9 +/-    0.83  0.050 / 0.130
G21     278.0          24.1               11.6 +/-    1.47      23.2 +/-    1.47  0.080 / 0.230
G25     225.3          45.8               14.6 +/-    0.53      19.4 +/-    0.53  0.080 / 0.180
G29     340.6          67.2               10.1 +/-    0.47      10.9 +/-    0.47  0.050 / 0.070