PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-23:13:00
G10     264.0          36.5               14.3 +/-   32.40      22.0 +/-   32.40  0.130 / 0.300
G13     43.2           20.3                7.9 +/-   33.68      17.3 +/-   33.68  0.140 / 0.230
G15     65.6           53.8                8.2 +/-   35.15       9.9 +/-   35.15  0.070 / 0.050
G16     280.0          13.3               11.3 +/-   35.85      29.3 +/-   35.85  0.050 / 0.040
G20     266.8          30.8               14.4 +/-   33.80      24.8 +/-   33.80  0.120 / 0.390
G21     353.6          69.4                8.7 +/-   35.36       9.3 +/-   35.36  0.140 / 0.460
G24     121.2          12.7               12.1 +/-   37.24      31.7 +/-   37.24  0.100 / 0.390
G27     319.9          16.4                8.6 +/-   35.76      20.6 +/-   35.76  0.120 / 0.330
G29     168.0          35.4               10.3 +/-   34.53      16.2 +/-   34.53  0.080 / 0.260