PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-17:42:50
G10     297.4          52.0                8.5 +/-    1.07      10.5 +/-    1.07  0.060 / 0.090
G14     210.0          11.7                5.4 +/-   23.69      14.6 +/-   23.69  0.060 / 0.100
G15     46.5           30.5                6.6 +/-    0.44      11.4 +/-    0.44  0.100 / 0.130
G20     352.0          65.4                6.8 +/-    1.01       7.4 +/-    1.01  0.120 / 0.130
G21     99.1           72.4               10.2 +/-    1.43      10.6 +/-    1.43  0.130 / 0.410
G24     93.4           25.9               10.6 +/-    0.77      20.3 +/-    0.77  0.090 / 0.440
G27     302.6          32.8                8.6 +/-    1.64      14.3 +/-    1.64  0.040 / 0.040
G32     210.4          31.5                9.1 +/-    1.46      15.4 +/-    1.46  0.040 / 0.050