PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-00:27:30
G10     296.6          51.6               14.3 +/-    2.08      17.6 +/-    2.08  0.060 / 0.080
G15     46.7           31.8                9.9 +/-    1.60      16.7 +/-    1.60  0.070 / 0.080
G20     296.7          49.2               11.4 +/-    0.55      14.6 +/-    0.55  0.040 / 0.040
G21     91.8           75.4               13.7 +/-    0.56      14.1 +/-    0.56  0.040 / 0.040
G24     96.4           26.1               13.7 +/-    1.34      26.1 +/-    1.34  0.090 / 0.110
G27     301.3          33.8               10.5 +/-    2.04      17.1 +/-    2.04  0.070 / 0.120
G32     210.0          33.2               18.6 +/-    2.06      30.5 +/-    2.06  0.080 / 0.120