PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-22:27:40
G05     48.3           20.9               10.9 +/-    2.43      23.5 +/-    2.43  0.230 / 0.520
G10     236.6          11.8                7.3 +/-   44.56      19.7 +/-   44.56  0.280 / 0.450
G13     76.9           37.5               13.1 +/-    1.03      19.9 +/-    1.03  0.190 / 0.270
G15     125.6          52.2               14.6 +/-    0.90      17.9 +/-    0.90  0.220 / 0.330
G16     315.7          11.2                9.4 +/-    8.30      25.7 +/-    8.30  0.040 / 0.080
G18     245.7          41.9               14.2 +/-    1.65      20.1 +/-    1.65  0.040 / 0.050
G20     29.6           65.0               12.4 +/-    0.34      13.5 +/-    0.34  0.040 / 0.070
G21     313.5          47.8               11.9 +/-    1.11      15.4 +/-    1.11  0.040 / 0.070
G26     289.5          19.6               11.2 +/-    1.02      24.8 +/-    1.02  0.280 / 0.110