PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-00:27:40
G01     96.2           30.2                9.1 +/-    1.31      15.9 +/-    1.31  0.040 / 0.040
G07     120.2          50.3                8.8 +/-    0.99      11.1 +/-    0.99  0.040 / 0.040
G08     42.1           14.0                5.3 +/-    3.32      13.4 +/-    3.32  0.080 / 0.100
G11     78.6           43.0                8.0 +/-    1.29      11.1 +/-    1.29  0.070 / 0.110
G13     300.9          33.5                5.1 +/-    1.74       8.4 +/-    1.74  0.040 / 0.060
G17     211.6          46.5                8.1 +/-    0.97      10.6 +/-    0.97  0.030 / 0.040
G19     212.4          22.5                8.7 +/-    1.98      18.0 +/-    1.98  0.300 / 0.280
G28     340.2          61.9                5.6 +/-    0.77       6.2 +/-    0.77  0.190 / 0.630
G30     94.2           75.5                7.9 +/-    0.69       8.1 +/-    0.69  0.030 / 0.040