PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-18:12:40
G08     273.8          21.5               11.4 +/-    1.80      24.1 +/-    1.80  0.030 / 0.030
G10     45.0           60.8               10.4 +/-    0.37      11.7 +/-    0.37  0.030 / 0.030
G11     316.0          12.5                9.1 +/-    1.36      24.1 +/-    1.36  0.050 / 0.070
G14     250.1          61.0               12.2 +/-    1.11      13.8 +/-    1.11  0.040 / 0.070
G20     86.4           42.2               11.0 +/-    0.62      15.5 +/-    0.62  0.140 / 0.140
G21     152.2          21.0               10.7 +/-    0.69      23.1 +/-    0.69  0.120 / 0.180
G24     41.5           12.4                7.6 +/-    1.88      20.0 +/-    1.88  0.140 / 0.300
G27     241.1          22.2                9.9 +/-    3.70      20.7 +/-    3.70  0.120 / 0.240
G31     182.3          18.9               10.4 +/-    2.72      23.6 +/-    2.72  0.070 / 0.180
G32     299.1          76.0               11.6 +/-    0.65      11.9 +/-    0.65  0.060 / 0.180