PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-18:27:50
G10     273.1          41.9               10.2 +/-    1.32      14.4 +/-    1.32  0.120 / 0.210
G13     39.6           13.8                7.0 +/-    2.01      18.0 +/-    2.01  0.120 / 0.180
G15     56.0           47.6                8.0 +/-    0.36      10.4 +/-    0.36  0.050 / 0.050
G16     274.3          10.3                6.9 +/-    2.76      19.1 +/-    2.76  0.050 / 0.050
G20     308.5          62.5                8.2 +/-    1.39       9.2 +/-    1.39  0.110 / 0.580
G21     23.2           75.0                9.3 +/-    0.67       9.6 +/-    0.67  0.130 / 0.690
G24     112.3          17.6                8.4 +/-    1.79      19.6 +/-    1.79  0.100 / 0.270
G27     316.8          21.5                6.6 +/-    3.83      14.0 +/-    3.83  0.130 / 0.310
G29     168.0          25.4                9.6 +/-    2.49      18.6 +/-    2.49  0.090 / 0.240
G32     205.0          14.3               10.8 +/-    3.50      27.3 +/-    3.50  0.080 / 0.210