PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-03:27:30
G10     296.5          51.5                7.8 +/-    1.99       9.6 +/-    1.99  0.060 / 0.070
G15     46.4           30.1                5.3 +/-    1.42       9.3 +/-    1.42  0.050 / 0.060
G20     339.8          64.8               10.1 +/-    0.40      11.0 +/-    0.40  0.040 / 0.030
G21     92.6           75.2                8.4 +/-    0.52       8.6 +/-    0.52  0.040 / 0.030
G24     97.2           26.2                8.3 +/-    1.28      15.8 +/-    1.28  0.070 / 0.080
G27     301.0          34.0                6.1 +/-    1.73       9.9 +/-    1.73  0.060 / 0.090
G32     210.0          33.3               10.7 +/-    1.94      17.6 +/-    1.94  0.070 / 0.120