PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-22:13:00
G10     299.7          52.7               11.3 +/-    1.76      13.8 +/-    1.76  0.030 / 0.030
G14     210.7          12.3               14.5 +/-   11.67      38.3 +/-   11.67  0.030 / 0.030
G15     46.7           32.1                9.6 +/-    1.22      16.0 +/-    1.22  0.120 / 0.460
G20     355.9          65.3               11.2 +/-    0.40      12.2 +/-    0.40  0.110 / 0.540
G21     100.7          73.3               12.8 +/-    0.46      13.3 +/-    0.46  0.060 / 0.090
G24     93.3           26.7               11.1 +/-    1.06      20.8 +/-    1.06  0.060 / 0.110
G27     299.8          34.2               10.7 +/-    0.93      17.2 +/-    0.93  0.090 / 0.060
G32     210.9          34.6               14.9 +/-    1.72      23.9 +/-    1.72  0.070 / 0.050