PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-17:58:00
G08     319.8          12.2                5.4 +/-    1.10      14.3 +/-    1.10  0.090 / 0.100
G10     304.9          54.3                8.7 +/-    0.95      10.5 +/-    0.95  0.070 / 0.070
G14     211.3          16.2               11.7 +/-    6.12      28.2 +/-    6.12  0.030 / 0.050
G15     45.9           26.1                7.3 +/-    0.95      13.9 +/-    0.95  0.040 / 0.050
G20     3.8            64.9                7.9 +/-    0.51       8.6 +/-    0.51  0.120 / 0.230
G21     111.4          69.0                9.3 +/-    1.15       9.9 +/-    1.15  0.110 / 0.250
G24     88.0           27.3                9.1 +/-    0.95      17.0 +/-    0.95  0.090 / 0.150
G27     297.3          34.8               10.0 +/-    1.40      15.9 +/-    1.40  0.080 / 0.150
G32     212.6          36.4                9.4 +/-    2.81      14.5 +/-    2.81  0.150 / 0.250