PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-18:58:10
G02     60.7           33.0                7.2 +/-    1.86      11.9 +/-    1.86  0.020 / 0.040
G05     54.4           59.0                7.7 +/-    0.69       8.9 +/-    0.69  0.030 / 0.040
G12     180.4          25.0               11.1 +/-    0.98      21.6 +/-    0.98  0.110 / 0.250
G13     125.0          17.5               11.7 +/-    2.41      27.2 +/-    2.41  0.160 / 0.340
G15     165.1          13.0               12.3 +/-    1.79      32.1 +/-    1.79  0.050 / 0.120
G21     273.7          18.3                9.4 +/-    1.42      21.5 +/-    1.42  0.060 / 0.150
G25     230.0          49.2               10.4 +/-    1.17      13.2 +/-    1.17  0.050 / 0.050
G29     329.4          56.4                7.1 +/-    0.75       8.3 +/-    0.75  0.060 / 0.060