PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-23:57:30
G10     288.0          48.5               11.3 +/-    1.89      14.5 +/-    1.89  0.090 / 0.090
G15     48.5           37.4                7.4 +/-    0.58      11.2 +/-    0.58  0.060 / 0.080
G20     287.3          43.6               16.4 +/-    0.67      22.5 +/-    0.67  0.040 / 0.060
G21     65.3           77.5                9.4 +/-    0.75       9.6 +/-    0.75  0.040 / 0.040
G24     102.8          23.6               11.2 +/-    2.53      22.7 +/-    2.53  0.070 / 0.170
G27     307.3          30.7               10.2 +/-    1.90      17.5 +/-    1.90  0.070 / 0.160
G29     169.0          14.8               15.4 +/-    2.31      38.5 +/-    2.31  0.050 / 0.070
G32     207.7          27.2               15.1 +/-    1.20      28.2 +/-    1.20  0.040 / 0.060