PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-21:57:40
G10     297.9          52.1               12.2 +/-    1.23      15.0 +/-    1.23  0.060 / 0.080
G14     210.3          11.3                7.3 +/-   34.19      19.9 +/-   34.19  0.070 / 0.100
G15     46.9           33.0                9.4 +/-    0.61      15.5 +/-    0.61  0.040 / 0.050
G20     352.9          65.4                9.3 +/-    1.01      10.2 +/-    1.01  0.040 / 0.040
G21     97.0           74.0               13.2 +/-    0.57      13.7 +/-    0.57  0.280 / 0.570
G24     94.6           26.3               13.1 +/-    0.69      24.9 +/-    0.69  0.130 / 0.490
G27     301.2          33.7               12.3 +/-    1.07      20.0 +/-    1.07  0.080 / 0.160
G32     210.4          33.3               13.9 +/-    1.65      22.8 +/-    1.65  0.090 / 0.150