PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-17:12:50
G08     305.6          21.3                7.3 +/-    2.29      15.6 +/-    2.29  0.040 / 0.030
G10     338.3          60.9               10.3 +/-    0.96      11.6 +/-    0.96  0.030 / 0.030
G14     219.3          33.8               12.1 +/-    1.01      19.6 +/-    1.01  0.040 / 0.060
G20     42.7           59.2               12.7 +/-    0.90      14.5 +/-    0.90  0.040 / 0.050
G21     136.7          51.5               13.8 +/-    1.53      17.1 +/-    1.53  0.120 / 0.120
G24     66.3           27.4               12.9 +/-    0.64      23.9 +/-    0.64  0.080 / 0.100
G27     274.4          36.4               12.5 +/-    0.84      19.3 +/-    0.84  0.070 / 0.100
G32     225.4          54.1               12.9 +/-    1.17      15.5 +/-    1.17  0.060 / 0.080