PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-01:42:40
G10     265.3          37.2               15.6 +/-    1.33      23.8 +/-    1.33  0.100 / 0.140
G13     42.7           19.5                9.4 +/-    1.08      20.9 +/-    1.08  0.110 / 0.160
G15     62.7           51.7               11.3 +/-    0.65      13.9 +/-    0.65  0.110 / 0.350
G16     279.2          12.8               10.8 +/-    1.63      28.4 +/-    1.63  0.120 / 0.340
G20     281.1          50.3               12.2 +/-    0.72      15.3 +/-    0.72  0.170 / 0.340
G21     356.6          70.4               12.1 +/-    0.68      12.8 +/-    0.68  0.180 / 0.330
G24     120.7          13.4               13.0 +/-    1.07      33.6 +/-    1.07  0.050 / 0.050
G27     319.4          17.5                9.5 +/-    1.00      22.2 +/-    1.00  0.040 / 0.040
G29     168.2          33.9               13.9 +/-    2.31      22.6 +/-    2.31  0.100 / 0.070