PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-20:57:50
G10     258.7          33.1               11.8 +/-    1.20      19.5 +/-    1.20  0.210 / 0.330
G13     46.4           24.0               10.2 +/-    1.04      20.5 +/-    1.04  0.140 / 0.300
G15     77.3           58.4               11.2 +/-    0.33      13.0 +/-    0.33  0.080 / 0.100
G16     286.2          14.5                8.4 +/-    2.46      21.1 +/-    2.46  0.070 / 0.090
G20     283.0          56.2               12.4 +/-    0.80      14.6 +/-    0.80  0.040 / 0.050
G21     346.5          66.3               10.2 +/-    0.84      11.0 +/-    0.84  0.040 / 0.060
G26     259.4          11.7               12.1 +/-    1.91      32.6 +/-    1.91  0.060 / 0.190
G27     321.9          11.4                1.4 +/-   32.65       3.8 +/-   32.65  0.070 / 0.250
G29     166.9          40.6               14.1 +/-    1.36      20.4 +/-    1.36  0.030 / 0.050