PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-21:57:40
G08     261.5          16.5               10.8 +/-    1.12      25.9 +/-    1.12  0.030 / 0.040
G10     69.2           56.1               10.1 +/-    0.84      11.9 +/-    0.84  0.040 / 0.050
G11     307.8          20.5                7.7 +/-    2.99      16.7 +/-    2.99  0.120 / 0.480
G14     277.0          68.5                8.3 +/-    0.88       8.8 +/-    0.88  0.100 / 0.470
G18     309.1          36.9                7.6 +/-    2.16      11.6 +/-    2.16  0.220 / 0.670
G20     99.4           33.7               10.4 +/-    1.56      16.8 +/-    1.56  0.170 / 0.660
G21     155.1          10.5                9.2 +/-    6.10      25.5 +/-    6.10  0.180 / 0.410
G27     230.1          13.5               11.6 +/-    1.95      29.8 +/-    1.95  0.180 / 0.370
G31     178.1          34.1               11.8 +/-    2.00      19.0 +/-    2.00  0.200 / 0.170
G32     353.5          71.8                7.2 +/-    1.29       7.5 +/-    1.29  0.180 / 0.310