PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-21:43:00
G10     244.3          21.3               25.3 +/-    0.88      53.9 +/-    0.88  0.040 / 0.070
G13     61.2           33.4               16.0 +/-    1.41      26.1 +/-    1.41  0.040 / 0.070
G15     109.9          58.3               18.1 +/-    0.40      20.8 +/-    0.40  0.060 / 0.130
G16     301.6          16.0               13.6 +/-    2.29      33.1 +/-    2.29  0.050 / 0.140
G20     247.7          10.9                9.5 +/-    1.48      26.0 +/-    1.48  0.150 / 0.430
G21     323.6          54.0               16.6 +/-    0.90      20.0 +/-    0.90  0.120 / 0.350
G26     273.7          18.5               19.7 +/-    1.82      45.0 +/-    1.82  0.030 / 0.050
G29     162.8          60.2               19.1 +/-    0.93      21.7 +/-    0.93  0.030 / 0.040