PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-19:42:40
G08     272.4          20.0               13.2 +/-    1.64      29.1 +/-    1.64  0.110 / 0.330
G10     49.6           60.8               11.6 +/-    0.57      13.1 +/-    0.57  0.200 / 0.290
G11     315.0          13.4               13.4 +/-    1.98      34.7 +/-    1.98  0.080 / 0.140
G14     256.5          63.1               13.4 +/-    0.90      14.8 +/-    0.90  0.120 / 0.140
G18     87.5           38.3               13.3 +/-    0.74      19.8 +/-    0.74  0.300 / 0.190
G21     152.1          15.8               12.0 +/-    2.52      29.2 +/-    2.52  0.280 / 0.550
G24     42.6           15.0               12.3 +/-    2.68      30.5 +/-    2.68  0.050 / 0.040
G27     234.7          19.1               12.4 +/-    4.75      27.9 +/-    4.75  0.060 / 0.040
G31     180.9          23.1               11.9 +/-    2.82      24.4 +/-    2.82  0.150 / 0.320
G32     312.1          75.6               12.4 +/-    0.76      12.7 +/-    0.76  0.130 / 0.360