PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-16:57:40
G08     313.0          17.7                8.4 +/-    2.12      19.6 +/-    2.12  0.110 / 0.240
G10     321.8          58.3               10.5 +/-    0.56      12.2 +/-    0.56  0.170 / 0.190
G14     214.9          25.7               12.8 +/-    0.96      24.5 +/-    0.96  0.060 / 0.080
G15     46.0           16.8                8.0 +/-    2.49      18.9 +/-    2.49  0.060 / 0.100
G20     26.0           62.5               12.2 +/-    1.98      13.6 +/-    1.98  0.040 / 0.030
G21     127.9          59.7               13.1 +/-    1.24      14.9 +/-    1.24  0.030 / 0.040
G24     76.0           28.3                9.8 +/-    0.88      17.8 +/-    0.88  0.060 / 0.060
G27     285.6          36.8               11.5 +/-    1.43      17.7 +/-    1.43  0.070 / 0.080
G32     218.4          45.7               11.9 +/-    1.39      15.9 +/-    1.39  0.030 / 0.030