PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-01:58:00
G10     288.8          48.7               11.2 +/-    1.20      14.3 +/-    1.20  0.060 / 0.100
G15     48.0           35.8                9.2 +/-    0.95      14.4 +/-    0.95  0.050 / 0.110
G20     306.1          57.5                9.2 +/-    0.66      10.8 +/-    0.66  0.050 / 0.060
G21     69.0           77.3               11.7 +/-    0.70      12.0 +/-    0.70  0.040 / 0.050
G24     102.7          23.9               10.6 +/-    1.82      21.3 +/-    1.82  0.040 / 0.070
G27     306.6          31.2                8.9 +/-    2.87      15.2 +/-    2.87  0.040 / 0.060
G29     168.9          14.1               14.2 +/-    3.95      36.1 +/-    3.95  0.060 / 0.200
G32     207.9          27.8               13.7 +/-    1.28      25.1 +/-    1.28  0.070 / 0.130