PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-19:57:30
G02     26.9           60.2               10.1 +/-    0.95      11.5 +/-    0.95  0.040 / 0.040
G05     145.6          58.6               11.2 +/-    0.58      12.8 +/-    0.58  0.030 / 0.030
G06     52.2           17.2                9.4 +/-    2.25      22.1 +/-    2.25  0.040 / 0.050
G12     195.1          69.8                9.1 +/-    0.69       9.6 +/-    0.69  0.040 / 0.050
G19     95.7           14.8               12.1 +/-    1.36      30.2 +/-    1.36  0.030 / 0.040
G25     301.9          51.2                9.7 +/-    2.66      12.0 +/-    2.66  0.030 / 0.040
G29     303.8          23.8                9.1 +/-    1.30      18.4 +/-    1.30  0.130 / 0.150