PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/07-18:43:00
G08     295.0          22.7                8.6 +/-    0.88      17.7 +/-    0.88  0.080 / 0.110
G10     2.0            62.9                7.5 +/-    1.22       8.3 +/-    1.22  0.120 / 0.090
G14     228.7          45.2               10.7 +/-    1.51      14.3 +/-    1.51  0.100 / 0.120
G18     62.9           50.9                8.6 +/-    0.78      10.8 +/-    0.78  0.100 / 0.100
G21     144.4          36.8               10.3 +/-    0.79      15.8 +/-    0.79  0.040 / 0.030
G24     58.7           27.2                8.0 +/-    1.08      14.9 +/-    1.08  0.040 / 0.030
G27     254.7          32.3                9.6 +/-    2.22      16.0 +/-    2.22  0.070 / 0.060
G32     242.3          65.1                9.5 +/-    0.43      10.4 +/-    0.43  0.040 / 0.080