PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-15:27:40
G08     316.2          15.3                3.9 +/-    1.66       9.5 +/-    1.66  0.050 / 0.070
G10     318.7          58.0                7.4 +/-    1.03       8.6 +/-    1.03  0.050 / 0.080
G14     213.9          18.2                7.8 +/-    2.32      17.8 +/-    2.32  0.110 / 0.390
G15     45.6           14.6                3.4 +/-    1.44       8.6 +/-    1.44  0.150 / 0.450
G20     26.5           61.9                6.7 +/-    0.73       7.4 +/-    0.73  0.040 / 0.050
G21     123.0          64.5                7.7 +/-    0.94       8.4 +/-    0.94  0.030 / 0.050
G24     86.4           30.0                6.9 +/-    0.56      12.1 +/-    0.56  0.070 / 0.120
G27     286.9          38.0                7.7 +/-    0.76      11.5 +/-    0.76  0.060 / 0.090
G32     215.4          45.1               10.2 +/-    1.49      13.7 +/-    1.49  0.140 / 0.470