PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/05-16:27:50
G10     293.9          50.9                9.6 +/-    2.22      11.9 +/-    2.22  0.100 / 0.130
G15     46.9           32.0                5.9 +/-    1.03      10.0 +/-    1.03  0.110 / 0.130
G20     346.2          65.4                9.3 +/-    0.27      10.1 +/-    0.27  0.030 / 0.030
G21     93.2           73.2                9.9 +/-    0.67      10.3 +/-    0.67  0.040 / 0.030
G24     95.5           25.0               10.6 +/-    1.21      20.8 +/-    1.21  0.060 / 0.090
G27     305.3          31.4                8.3 +/-    1.39      14.1 +/-    1.39  0.070 / 0.120
G32     209.5          28.7               11.5 +/-    1.45      20.7 +/-    1.45  0.070 / 0.110