PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-13:42:40
G02     204.1          31.0                7.4 +/-    1.98      12.6 +/-    1.98  0.070 / 0.080
G06     157.1          69.0                6.8 +/-    0.97       7.3 +/-    0.97  0.070 / 0.110
G12     306.7          15.0                4.3 +/-    3.66      10.8 +/-    3.66  0.100 / 0.360
G17     32.4           51.9                4.8 +/-    0.61       5.9 +/-    0.61  0.140 / 0.300
G19     4.2            64.8                5.2 +/-    0.49       5.7 +/-    0.49  0.040 / 0.100
G24     299.0          36.9                8.0 +/-    0.99      12.3 +/-    0.99  0.050 / 0.120
G28     98.2           37.4                7.5 +/-    0.70      11.5 +/-    0.70  0.030 / 0.050