PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-22:43:00
G02     52.8           38.7                9.5 +/-    1.38      14.2 +/-    1.38  0.040 / 0.060
G05     72.2           66.4               10.5 +/-    0.54      11.3 +/-    0.54  0.040 / 0.070
G12     184.3          39.1               11.7 +/-    0.80      17.3 +/-    0.80  0.290 / 0.330
G13     133.9          10.0               -1.0 +/-   26.08      -2.7 +/-   26.08  0.290 / 0.420
G21     264.9          11.7               10.0 +/-   17.32      26.9 +/-   17.32  0.170 / 0.410
G25     249.9          56.4               10.0 +/-    1.96      11.7 +/-    1.96  0.160 / 0.370
G29     322.5          46.2               10.3 +/-    0.72      13.6 +/-    0.72  0.050 / 0.050