PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/04-17:42:40
G10     299.9          53.4                8.9 +/-    1.61      10.8 +/-    1.61  0.060 / 0.070
G15     45.8           25.7                8.1 +/-    1.76      15.5 +/-    1.76  0.080 / 0.090
G20     359.4          65.0                9.5 +/-    0.44      10.4 +/-    0.44  0.040 / 0.040
G21     96.6           73.9               10.8 +/-    0.45      11.2 +/-    0.45  0.040 / 0.040
G24     99.2           26.8               10.9 +/-    0.79      20.5 +/-    0.79  0.090 / 0.130
G27     300.5          34.6                8.4 +/-    1.12      13.4 +/-    1.12  0.090 / 0.100
G32     209.8          33.5               12.3 +/-    1.39      20.1 +/-    1.39  0.040 / 0.070