PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-04:12:30
G10     252.3          28.0               11.5 +/-    1.78      21.1 +/-    1.78  0.100 / 0.310
G13     51.9           28.9                7.9 +/-    1.52      14.1 +/-    1.52  0.100 / 0.250
G15     82.8           57.2                9.5 +/-    1.07      11.1 +/-    1.07  0.030 / 0.040
G16     292.8          15.5                9.5 +/-    1.84      23.4 +/-    1.84  0.040 / 0.050
G20     290.1          64.2               10.5 +/-    0.66      11.5 +/-    0.66  0.060 / 0.130
G21     335.5          61.2                8.2 +/-    0.36       9.2 +/-    0.36  0.100 / 0.160
G26     264.5          14.8               11.9 +/-    1.47      29.7 +/-    1.47  0.040 / 0.030
G29     165.7          48.4               10.7 +/-    0.60      13.8 +/-    0.60  0.030 / 0.040