PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/27-16:28:00
G10     248.5          24.2               11.6 +/-    0.57      23.0 +/-    0.57  0.040 / 0.040
G13     56.9           32.3                7.8 +/-    1.30      13.0 +/-    1.30  0.050 / 0.040
G15     89.3           57.0               11.0 +/-    0.78      12.9 +/-    0.78  0.060 / 0.050
G16     303.1          13.3                6.9 +/-    2.21      17.7 +/-    2.21  0.050 / 0.060
G18     267.0          55.9                9.6 +/-    1.51      11.3 +/-    1.51  0.130 / 0.380
G20     39.3           52.7                8.9 +/-    0.66      10.9 +/-    0.66  0.140 / 0.320
G21     337.2          61.8                8.9 +/-    1.00      10.0 +/-    1.00  0.150 / 0.340
G26     273.4          16.1               10.1 +/-    1.94      24.5 +/-    1.94  0.140 / 0.430
G29     161.5          47.5               12.1 +/-    0.65      15.8 +/-    0.65  0.050 / 0.110