PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-17:43:00
G01     320.1          15.2                6.5 +/-    1.09      16.2 +/-    1.09  0.120 / 0.390
G08     258.4          15.0                8.3 +/-    2.12      20.7 +/-    2.12  0.120 / 0.340
G10     74.7           54.4               11.6 +/-    0.53      14.0 +/-    0.53  0.060 / 0.050
G11     305.0          22.3                6.8 +/-    1.77      14.1 +/-    1.77  0.060 / 0.050
G14     287.7          70.3               11.0 +/-    0.64      11.6 +/-    0.64  0.040 / 0.040
G18     305.6          41.0               10.0 +/-    0.94      14.3 +/-    0.94  0.030 / 0.040
G20     102.4          31.4               13.7 +/-    1.22      23.4 +/-    1.22  0.080 / 0.220
G27     228.9          11.7                9.3 +/-    3.68      25.1 +/-    3.68  0.070 / 0.250
G31     180.2          34.4               15.9 +/-    2.13      25.5 +/-    2.13  0.150 / 0.390
G32     356.4          70.5               11.2 +/-    0.50      11.8 +/-    0.50  0.140 / 0.440