PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-23:13:00
G10     298.5          52.3               11.8 +/-    1.52      14.5 +/-    1.52  0.060 / 0.080
G14     210.5          11.7                2.6 +/-   37.87       7.1 +/-   37.87  0.060 / 0.080
G15     46.6           31.4                6.7 +/-    0.76      11.4 +/-    0.76  0.030 / 0.040
G20     289.0          40.6                7.6 +/-    1.28      11.0 +/-    1.28  0.040 / 0.050
G21     95.9           74.8               10.8 +/-    0.48      11.2 +/-    0.48  0.160 / 0.580
G24     94.8           26.5               12.8 +/-    0.98      24.1 +/-    0.98  0.130 / 0.480
G27     300.1          34.3               11.4 +/-    0.96      18.3 +/-    0.96  0.080 / 0.130
G32     210.5          34.5               16.0 +/-    1.10      25.6 +/-    1.10  0.080 / 0.170