PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-17:42:20
G02     41.9           48.3               11.6 +/-    0.36      15.0 +/-    0.36  0.030 / 0.030
G05     109.2          70.3               14.7 +/-    0.93      15.5 +/-    0.93  0.030 / 0.030
G12     185.3          49.0               16.1 +/-    2.09      20.6 +/-    2.09  0.050 / 0.050
G25     266.3          59.3               14.2 +/-    0.88      16.2 +/-    0.88  0.070 / 0.060
G29     316.6          38.3               12.2 +/-    0.90      18.3 +/-    0.90  0.040 / 0.060