PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-15:12:40
G10     260.1          34.3                7.6 +/-    2.12      12.2 +/-    2.12  0.070 / 0.110
G13     45.5           22.9                8.7 +/-    0.79      17.9 +/-    0.79  0.070 / 0.100
G15     69.4           54.6               10.0 +/-    0.40      11.9 +/-    0.40  0.040 / 0.040
G16     286.9          13.8                4.8 +/-    1.30      12.3 +/-    1.30  0.050 / 0.040
G20     285.6          57.1               11.1 +/-    1.10      12.9 +/-    1.10  0.120 / 0.270
G21     356.0          68.9                9.3 +/-    0.74       9.9 +/-    0.74  0.120 / 0.380
G24     121.6          10.9                2.6 +/-   40.79       7.2 +/-   40.79  0.180 / 0.300
G26     261.0          11.0                5.0 +/-    1.43      13.5 +/-    1.43  0.140 / 0.310
G27     322.0          11.4               -3.6 +/-   29.01      -9.8 +/-   29.01  0.070 / 0.250
G29     165.9          37.2               11.9 +/-    1.39      18.2 +/-    1.39  0.070 / 0.250