PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-18:13:00
G10     265.6          37.7               10.8 +/-    1.23      16.3 +/-    1.23  0.150 / 0.250
G13     42.4           19.0                7.9 +/-    1.22      17.7 +/-    1.22  0.130 / 0.190
G15     63.4           52.6                8.5 +/-    0.80      10.4 +/-    0.80  0.050 / 0.040
G16     280.5          12.6                8.3 +/-    1.81      21.8 +/-    1.81  0.040 / 0.040
G20     295.1          59.7                8.3 +/-    1.12       9.4 +/-    1.12  0.140 / 0.330
G21     3.3            71.5                8.4 +/-    0.66       8.8 +/-    0.66  0.170 / 0.440
G24     118.2          13.8               10.4 +/-    1.89      26.5 +/-    1.89  0.170 / 0.350
G27     320.0          16.3                8.0 +/-    1.28      19.4 +/-    1.28  0.140 / 0.330
G29     167.4          32.5               10.8 +/-    1.00      17.9 +/-    1.00  0.080 / 0.290