PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-22:27:30
G08     318.1          13.7                9.4 +/-    1.00      24.0 +/-    1.00  0.050 / 0.090
G10     310.4          55.7               10.2 +/-    1.06      12.1 +/-    1.06  0.060 / 0.070
G14     212.7          18.5               14.5 +/-    2.47      33.2 +/-    2.47  0.040 / 0.040
G15     45.9           26.1               10.0 +/-    1.02      19.0 +/-    1.02  0.030 / 0.040
G20     11.8           64.3               11.2 +/-    0.63      12.3 +/-    0.63  0.030 / 0.050
G21     117.1          68.3               13.6 +/-    0.53      14.6 +/-    0.53  0.030 / 0.050
G24     85.6           28.4               11.5 +/-    0.83      20.9 +/-    0.83  0.140 / 0.680
G27     291.9          36.4               11.7 +/-    1.40      18.1 +/-    1.40  0.130 / 0.530
G32     214.3          41.3               15.4 +/-    0.85      21.9 +/-    0.85  0.070 / 0.150