PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/06-15:28:00
G01     121.6          15.1                9.2 +/-    1.47      22.8 +/-    1.47  0.090 / 0.060
G07     80.2           64.2               10.0 +/-    0.64      11.0 +/-    0.64  0.080 / 0.080
G08     47.2           35.7                7.5 +/-    0.96      11.8 +/-    0.96  0.050 / 0.090
G09     178.2          31.4                8.8 +/-    1.45      15.0 +/-    1.45  0.050 / 0.080
G11     110.8          39.1               10.1 +/-    0.95      14.9 +/-    0.95  0.030 / 0.040
G13     318.9          17.3                8.8 +/-    2.42      20.6 +/-    2.42  0.030 / 0.030
G17     200.6          19.4                9.6 +/-    1.99      21.5 +/-    1.99  0.140 / 0.190
G18     96.7           19.2                8.5 +/-    1.08      19.0 +/-    1.08  0.120 / 0.190
G28     278.8          51.9                9.8 +/-    2.76      12.1 +/-    2.76  0.080 / 0.090