PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-22:12:40
G05     52.9           9.0                 7.4 +/-    5.42      21.2 +/-    5.42  0.190 / 0.310
G10     243.4          20.4               13.7 +/-    2.01      29.9 +/-    2.01  0.170 / 0.280
G13     62.6           33.9               10.0 +/-    1.28      16.1 +/-    1.28  0.030 / 0.050
G15     111.8          57.8               10.5 +/-    0.78      12.1 +/-    0.78  0.050 / 0.050
G16     302.9          15.8                7.8 +/-    1.48      19.0 +/-    1.48  0.100 / 0.440
G20     247.9          14.1               13.1 +/-    3.24      33.3 +/-    3.24  0.120 / 0.470
G21     322.4          53.2               10.1 +/-    0.58      12.2 +/-    0.58  0.060 / 0.100
G26     274.9          18.9               11.3 +/-    1.00      25.6 +/-    1.00  0.050 / 0.140
G29     162.3          61.5               10.2 +/-    0.81      11.5 +/-    0.81  0.030 / 0.030