PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-23:28:10
G10     295.5          51.3               19.9 +/-    0.67      24.8 +/-    0.67  0.060 / 0.090
G15     47.0           33.0               15.3 +/-    0.98      25.2 +/-    0.98  0.060 / 0.090
G20     288.9          41.8               12.6 +/-    0.93      17.8 +/-    0.93  0.050 / 0.040
G21     88.7           75.9               20.1 +/-    0.91      20.6 +/-    0.91  0.040 / 0.050
G24     97.0           25.8               19.9 +/-    0.59      38.2 +/-    0.59  0.070 / 0.130
G27     302.2          33.4               20.8 +/-    0.89      34.0 +/-    0.89  0.090 / 0.140
G32     209.6          32.5               25.4 +/-    1.07      42.3 +/-    1.07  0.050 / 0.080