PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-01:28:10
G10     288.6          48.7               10.1 +/-    1.46      12.9 +/-    1.46  0.090 / 0.100
G15     48.2           36.2                6.6 +/-    0.77      10.2 +/-    0.77  0.070 / 0.100
G20     300.3          54.4                8.3 +/-    0.91       9.9 +/-    0.91  0.080 / 0.190
G21     68.0           77.4                9.1 +/-    0.47       9.3 +/-    0.47  0.070 / 0.220
G24     102.7          23.8               10.1 +/-    2.03      20.3 +/-    2.03  0.040 / 0.050
G27     306.8          31.0                7.7 +/-    2.23      13.2 +/-    2.23  0.040 / 0.050
G29     168.9          14.3               14.2 +/-    3.46      36.0 +/-    3.46  0.040 / 0.050
G32     207.9          27.6               12.7 +/-    1.07      23.4 +/-    1.07  0.040 / 0.040