PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-21:43:10
G02     36.5           52.6                9.7 +/-    0.76      11.9 +/-    0.76  0.050 / 0.040
G05     128.1          65.9                9.3 +/-    0.58      10.1 +/-    0.58  0.040 / 0.040
G06     57.0           10.9                7.7 +/-    1.96      21.2 +/-    1.96  0.050 / 0.030
G12     189.7          60.3               10.5 +/-    0.39      11.9 +/-    0.39  0.040 / 0.030
G25     288.7          56.3               11.7 +/-    1.34      13.7 +/-    1.34  0.120 / 0.170
G29     310.1          30.5                9.4 +/-    1.78      16.2 +/-    1.78  0.120 / 0.200