PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-22:12:30
G02     33.7           55.0                9.7 +/-    0.69      11.5 +/-    0.69  0.030 / 0.040
G05     135.2          63.5               12.2 +/-    0.44      13.5 +/-    0.44  0.030 / 0.040
G06     55.0           13.5                6.4 +/-    0.97      16.5 +/-    0.97  0.110 / 0.320
G12     192.7          64.6                8.9 +/-    0.85       9.7 +/-    0.85  0.090 / 0.350
G19     100.4          10.9                9.3 +/-    1.53      25.6 +/-    1.53  0.030 / 0.040
G25     294.8          54.3                9.0 +/-    1.03      10.8 +/-    1.03  0.030 / 0.040
G29     307.8          27.9                7.0 +/-    1.05      12.8 +/-    1.05  0.040 / 0.060