PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-21:12:50
G08     266.6          18.9                7.9 +/-    2.06      17.9 +/-    2.06  0.040 / 0.040
G10     59.3           58.5                8.2 +/-    0.79       9.4 +/-    0.79  0.040 / 0.040
G11     311.7          17.2                6.5 +/-    9.98      15.3 +/-    9.98  0.210 / 0.490
G14     263.8          65.6                9.7 +/-    0.70      10.5 +/-    0.70  0.220 / 0.510
G18     312.4          32.5                6.9 +/-    1.50      11.5 +/-    1.50  0.140 / 0.170
G20     94.1           37.5                9.4 +/-    1.57      14.2 +/-    1.57  0.080 / 0.160
G21     154.2          15.5               10.5 +/-    3.44      25.7 +/-    3.44  0.150 / 0.260
G27     234.4          17.2                8.4 +/-    1.33      19.8 +/-    1.33  0.250 / 0.250
G31     179.4          28.0                9.6 +/-    1.16      17.5 +/-    1.16  0.160 / 0.090
G32     335.1          74.8                8.3 +/-    0.52       8.5 +/-    0.52  0.120 / 0.350