PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-03:43:00
G10     245.8          22.4               17.2 +/-    2.50      35.8 +/-    2.50  0.140 / 0.500
G13     59.5           33.0               10.0 +/-    0.61      16.5 +/-    0.61  0.130 / 0.470
G15     99.5           57.8               12.4 +/-    0.33      14.3 +/-    0.33  0.040 / 0.050
G16     300.6          15.7                9.9 +/-    3.01      24.3 +/-    3.01  0.030 / 0.070
G20     272.0          58.5               14.3 +/-    0.63      16.4 +/-    0.63  0.080 / 0.220
G21     326.2          55.7               11.5 +/-    0.88      13.6 +/-    0.88  0.110 / 0.230
G26     272.1          17.9               14.4 +/-    1.53      33.4 +/-    1.53  0.050 / 0.130
G29     163.4          57.5               13.5 +/-    0.70      15.7 +/-    0.70  0.050 / 0.130