PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-18:12:40
G02     63.4           29.7               17.2 +/-    2.05      30.2 +/-    2.05  0.110 / 0.120
G05     55.0           60.9               17.2 +/-    0.64      19.4 +/-    0.64  0.100 / 0.090
G12     184.7          28.0               15.8 +/-    1.19      28.9 +/-    1.19  0.070 / 0.110
G13     126.2          18.3               19.3 +/-    2.18      44.3 +/-    2.18  0.090 / 0.100
G15     161.2          15.7               17.2 +/-    2.82      42.2 +/-    2.82  0.150 / 0.300
G20     210.6          65.4               17.3 +/-    1.04      18.9 +/-    1.04  0.100 / 0.340
G21     275.5          21.7               14.5 +/-    2.02      30.7 +/-    2.02  0.030 / 0.030
G25     226.5          47.5               17.4 +/-    2.72      22.6 +/-    2.72  0.050 / 0.040
G29     336.2          63.5               17.0 +/-    0.44      18.8 +/-    0.44  0.040 / 0.030