PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-04:27:50
G10     278.4          44.2               10.9 +/-    1.59      14.9 +/-    1.59  0.060 / 0.040
G13     38.4           10.5               10.1 +/-    2.68      27.8 +/-    2.68  0.060 / 0.050
G15     51.3           41.3               10.0 +/-    1.01      14.3 +/-    1.01  0.210 / 0.650
G20     339.7          66.7                9.3 +/-    0.98      10.0 +/-    0.98  0.210 / 0.560
G21     33.0           76.7               11.0 +/-    0.60      11.3 +/-    0.60  0.070 / 0.090
G24     111.1          19.9               12.2 +/-    0.97      26.9 +/-    0.97  0.070 / 0.120
G27     312.8          26.4               10.7 +/-    1.37      20.3 +/-    1.37  0.080 / 0.140
G29     169.0          21.6               12.5 +/-    1.94      26.5 +/-    1.94  0.090 / 0.170
G32     205.7          20.1               14.6 +/-    2.70      32.1 +/-    2.70  0.050 / 0.060