PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-20:12:30
G02     297.5          81.0                8.7 +/-    0.94       8.8 +/-    0.94  0.060 / 0.120
G05     166.9          27.3               12.7 +/-    1.15      23.6 +/-    1.15  0.040 / 0.110
G06     40.7           44.9                7.3 +/-    0.59       9.9 +/-    0.59  0.030 / 0.040
G12     318.5          67.5                5.9 +/-    1.47       6.3 +/-    1.47  0.030 / 0.050
G17     80.6           15.7                8.8 +/-    1.70      21.6 +/-    1.70  0.090 / 0.240
G19     67.2           33.5                8.5 +/-    0.84      13.9 +/-    0.84  0.160 / 0.200
G24     232.6          27.0               12.9 +/-    2.71      24.1 +/-    2.71  0.130 / 0.140
G25     317.7          23.0                6.9 +/-    1.14      14.1 +/-    1.14  0.070 / 0.170