PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-02:27:50
G08     302.6          21.7                8.1 +/-    1.33      17.1 +/-    1.33  0.090 / 0.070
G10     346.8          61.8               10.4 +/-    0.60      11.6 +/-    0.60  0.060 / 0.080
G14     222.4          35.7               14.0 +/-    2.00      22.0 +/-    2.00  0.050 / 0.040
G20     2.5            65.4               15.4 +/-    0.81      16.7 +/-    0.81  0.030 / 0.040
G21     140.7          51.0               11.1 +/-    0.50      13.9 +/-    0.50  0.060 / 0.170
G24     64.5           28.1                6.9 +/-    1.45      12.5 +/-    1.45  0.070 / 0.170
G27     265.7          35.7               11.7 +/-    1.50      18.4 +/-    1.50  0.090 / 0.090
G32     231.2          61.3               11.4 +/-    1.83      12.8 +/-    1.83  0.100 / 0.070