PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-17:43:00
G02     71.8           22.7               13.8 +/-    0.82      28.4 +/-    0.82  0.060 / 0.140
G05     46.9           50.4               14.3 +/-    0.88      18.0 +/-    0.88  0.070 / 0.150
G12     182.6          18.0               17.7 +/-    2.21      41.0 +/-    2.21  0.030 / 0.040
G13     117.2          25.1               19.0 +/-    1.05      37.1 +/-    1.05  0.030 / 0.050
G15     155.0          24.4               19.9 +/-    1.09      39.3 +/-    1.09  0.060 / 0.050
G18     223.0          14.5               17.3 +/-    4.62      43.5 +/-    4.62  0.110 / 0.050
G20     222.5          76.2               17.0 +/-    0.80      17.5 +/-    0.80  0.090 / 0.230
G21     284.4          28.3               13.0 +/-    1.03      23.7 +/-    1.03  0.100 / 0.280
G25     217.4          38.6               19.3 +/-    1.27      28.7 +/-    1.27  0.080 / 0.190
G29     349.1          74.5               12.8 +/-    0.84      13.3 +/-    0.84  0.070 / 0.200