PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/23-16:28:10
G02     34.0           54.5               10.1 +/-    1.26      12.1 +/-    1.26  0.050 / 0.040
G05     137.0          65.3               12.3 +/-    0.50      13.3 +/-    0.50  0.040 / 0.050
G06     56.8           11.3                8.8 +/-    1.80      23.8 +/-    1.80  0.030 / 0.020
G12     189.4          60.2               12.2 +/-    0.30      13.8 +/-    0.30  0.030 / 0.030
G19     102.5          10.2               11.2 +/-    1.56      31.1 +/-    1.56  0.030 / 0.040
G25     285.2          58.0               10.9 +/-    2.22      12.6 +/-    2.22  0.040 / 0.030
G29     310.5          31.1               12.0 +/-    2.09      20.5 +/-    2.09  0.100 / 0.130