PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-18:58:00
G08     321.2          10.4              -13.7 +/-   32.16     -38.0 +/-   32.16  0.050 / 0.080
G10     301.8          52.9                9.0 +/-    0.63      11.0 +/-    0.63  0.070 / 0.090
G14     211.2          15.8               15.3 +/-    4.27      37.3 +/-    4.27  0.070 / 0.110
G15     45.6           24.2                7.9 +/-    1.57      15.7 +/-    1.57  0.060 / 0.140
G18     9.3            65.0                7.9 +/-    0.60       8.6 +/-    0.60  0.130 / 0.280
G20     73.4           17.1                8.9 +/-    1.65      21.0 +/-    1.65  0.120 / 0.460
G21     111.0          67.8               11.9 +/-    0.66      12.8 +/-    0.66  0.040 / 0.060
G24     95.1           27.9               12.2 +/-    1.36      22.4 +/-    1.36  0.030 / 0.050
G27     294.9          36.3               10.0 +/-    1.26      15.5 +/-    1.26  0.060 / 0.090
G32     212.7          33.7               12.7 +/-    1.65      20.6 +/-    1.65  0.070 / 0.090