PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-18:12:50
G05     52.0           11.6               11.0 +/-    1.51      29.7 +/-    1.51  0.160 / 0.290
G10     242.4          18.3               11.2 +/-    2.57      25.7 +/-    2.57  0.170 / 0.330
G13     65.8           35.7               11.0 +/-    0.45      17.2 +/-    0.45  0.060 / 0.060
G15     106.6          56.4               13.6 +/-    0.28      15.9 +/-    0.28  0.070 / 0.080
G16     310.9          12.0               11.3 +/-    1.54      30.2 +/-    1.54  0.040 / 0.050
G18     255.8          50.0               11.6 +/-    1.14      14.6 +/-    1.14  0.040 / 0.040
G20     34.2           58.8               11.7 +/-    0.36      13.4 +/-    0.36  0.120 / 0.210
G21     325.1          55.4               11.5 +/-    0.83      13.6 +/-    0.83  0.120 / 0.220
G26     282.9          17.9               11.4 +/-    1.33      26.3 +/-    1.33  0.190 / 0.540
G29     157.8          55.3               14.6 +/-    0.61      17.3 +/-    0.61  0.170 / 0.390