PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-22:12:30
G02     32.0           56.4               11.2 +/-    0.87      13.1 +/-    0.87  0.040 / 0.030
G05     138.5          62.1               13.0 +/-    0.47      14.6 +/-    0.47  0.040 / 0.040
G06     54.0           14.8                8.8 +/-    3.03      22.1 +/-    3.03  0.040 / 0.040
G12     194.4          66.7               12.3 +/-    0.27      13.3 +/-    0.27  0.050 / 0.040
G19     99.0           12.0               11.9 +/-    1.56      31.8 +/-    1.56  0.150 / 0.190
G25     297.5          53.2               10.9 +/-    2.14      13.2 +/-    2.14  0.140 / 0.170
G29     306.5          26.6               11.5 +/-    1.14      21.6 +/-    1.14  0.040 / 0.060