PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-17:13:10
G05     50.9           13.6                6.4 +/-    1.40      16.4 +/-    1.40  0.070 / 0.230
G10     241.1          19.9               10.4 +/-    0.98      22.9 +/-    0.98  0.080 / 0.190
G13     65.2           33.7                7.2 +/-    0.78      11.7 +/-    0.78  0.120 / 0.580
G15     108.9          56.3                9.7 +/-    0.57      11.4 +/-    0.57  0.130 / 0.560
G16     306.6          15.0                5.5 +/-    3.61      13.7 +/-    3.61  0.060 / 0.080
G20     256.9          44.3                8.0 +/-    1.21      10.9 +/-    1.21  0.060 / 0.070
G21     320.8          51.5                8.7 +/-    1.34      10.8 +/-    1.34  0.030 / 0.030
G26     279.8          19.0                6.6 +/-    1.58      14.9 +/-    1.58  0.030 / 0.040
G29     158.9          64.8               10.0 +/-    0.68      11.0 +/-    0.68  0.110 / 0.220