PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-21:58:10
G02     23.6           62.8               10.1 +/-    1.29      11.2 +/-    1.29  0.030 / 0.040
G05     149.7          54.7               10.9 +/-    0.70      13.0 +/-    0.70  0.040 / 0.050
G06     49.9           21.0                8.4 +/-    1.06      18.1 +/-    1.06  0.030 / 0.040
G12     208.0          75.3                9.5 +/-    0.57       9.8 +/-    0.57  0.030 / 0.040
G19     92.3           16.9               11.1 +/-    1.18      26.5 +/-    1.18  0.040 / 0.050
G25     307.1          47.3               11.2 +/-    0.96      14.6 +/-    0.96  0.040 / 0.050
G29     300.8          20.9               11.0 +/-    2.25      23.8 +/-    2.25  0.090 / 0.300