PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-17:12:40
G05     52.3           11.2                6.9 +/-    2.06      18.7 +/-    2.06  0.340 / 0.220
G10     243.5          22.3               10.4 +/-    1.28      21.6 +/-    1.28  0.240 / 0.340
G13     61.6           32.7                6.3 +/-    1.58      10.5 +/-    1.58  0.050 / 0.050
G15     102.2          57.1               10.2 +/-    1.23      11.9 +/-    1.23  0.040 / 0.060
G16     303.5          15.6                5.6 +/-    1.56      13.7 +/-    1.56  0.130 / 0.400
G20     260.6          46.7                8.6 +/-    4.29      11.4 +/-    4.29  0.120 / 0.500
G21     324.1          53.7                8.0 +/-    0.56       9.7 +/-    0.56  0.070 / 0.130
G26     276.5          18.3                9.0 +/-    1.16      20.6 +/-    1.16  0.060 / 0.110
G29     160.5          61.1               11.2 +/-    0.32      12.6 +/-    0.32  0.030 / 0.040