PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-17:12:40
G08     307.3          20.6               10.3 +/-    2.67      22.4 +/-    2.67  0.040 / 0.050
G10     334.6          60.4                8.6 +/-    0.38       9.7 +/-    0.38  0.040 / 0.050
G14     218.2          32.0               13.1 +/-    1.32      22.0 +/-    1.32  0.030 / 0.040
G15     47.1           11.2                8.2 +/-    0.82      22.2 +/-    0.82  0.030 / 0.030
G20     39.3           60.0               11.2 +/-    0.84      12.7 +/-    0.84  0.060 / 0.150
G21     135.1          53.4               13.9 +/-    0.83      16.8 +/-    0.83  0.060 / 0.180
G24     68.4           27.7                9.7 +/-    0.73      17.8 +/-    0.73  0.120 / 0.290
G27     276.8          36.7               11.6 +/-    1.81      17.8 +/-    1.81  0.110 / 0.250
G32     223.7          52.3               12.3 +/-    1.47      15.1 +/-    1.47  0.060 / 0.120