PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-18:43:00
G10     280.6          46.5               11.3 +/-    1.21      14.9 +/-    1.21  0.080 / 0.150
G15     50.0           38.7                9.2 +/-    0.68      13.7 +/-    0.68  0.070 / 0.120
G20     325.1          64.6                9.4 +/-    0.66      10.3 +/-    0.66  0.080 / 0.160
G21     37.7           76.6               10.8 +/-    0.59      11.1 +/-    0.59  0.080 / 0.140
G24     112.8          20.3               10.8 +/-    1.14      23.5 +/-    1.14  0.040 / 0.040
G27     312.7          26.8               10.0 +/-    1.10      18.7 +/-    1.10  0.050 / 0.040
G29     168.2          21.0               11.1 +/-    1.08      23.8 +/-    1.08  0.060 / 0.170
G32     205.6          20.0               10.4 +/-    1.33      22.9 +/-    1.33  0.060 / 0.190