PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-17:12:30
G08     300.3          22.8                6.3 +/-    1.09      12.9 +/-    1.09  0.020 / 0.020
G10     349.8          62.1                8.2 +/-    0.29       9.2 +/-    0.29  0.030 / 0.020
G14     222.8          39.0               10.9 +/-    2.03      16.2 +/-    2.03  0.060 / 0.060
G20     52.2           56.7                9.6 +/-    0.70      11.2 +/-    0.70  0.120 / 0.090
G21     141.0          46.0               11.0 +/-    1.11      14.7 +/-    1.11  0.110 / 0.080
G24     60.7           26.0                8.9 +/-    1.26      17.0 +/-    1.26  0.080 / 0.080
G27     267.4          35.2                9.3 +/-    2.19      14.6 +/-    2.19  0.100 / 0.140
G32     231.5          59.3               10.4 +/-    1.50      11.9 +/-    1.50  0.090 / 0.100