PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-21:42:40
G01     320.7          13.7               -2.5 +/-   35.21      -6.5 +/-   35.21  0.130 / 0.260
G08     265.7          16.9               12.3 +/-    1.53      29.3 +/-    1.53  0.150 / 0.520
G10     69.4           55.2               11.8 +/-    1.28      14.1 +/-    1.28  0.040 / 0.060
G11     310.8          17.3               10.9 +/-    1.45      25.6 +/-    1.45  0.040 / 0.050
G14     268.7          65.4               12.7 +/-    1.22      13.8 +/-    1.22  0.120 / 0.410
G20     99.8           32.5               10.7 +/-    1.30      17.8 +/-    1.30  0.160 / 0.370
G21     155.8          12.7               14.3 +/-    2.77      37.7 +/-    2.77  0.130 / 0.190
G27     229.2          14.0               15.1 +/-    1.52      38.6 +/-    1.52  0.130 / 0.180
G31     176.6          34.7                6.9 +/-    1.32      11.0 +/-    1.32  0.110 / 0.320
G32     353.1          72.2               10.7 +/-    0.64      11.2 +/-    0.64  0.130 / 0.330