PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-00:27:50
G10     294.0          50.7                9.9 +/-    0.89      12.3 +/-    0.89  0.060 / 0.100
G15     47.1           33.4                8.1 +/-    1.28      13.2 +/-    1.28  0.060 / 0.100
G20     294.9          48.6                7.5 +/-    1.01       9.6 +/-    1.01  0.070 / 0.130
G21     84.7           76.3               11.1 +/-    0.49      11.4 +/-    0.49  0.070 / 0.120
G24     98.4           25.4               10.8 +/-    0.89      20.9 +/-    0.89  0.180 / 0.340
G27     303.2          33.0               10.2 +/-    1.20      16.8 +/-    1.20  0.190 / 0.300
G29     168.7          10.7               14.6 +/-    1.86      40.0 +/-    1.86  0.060 / 0.040
G32     209.2          31.4               13.9 +/-    2.74      23.6 +/-    2.74  0.060 / 0.040