PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-23:58:00
G02     8.0            72.3                8.7 +/-    0.34       9.1 +/-    0.34  0.030 / 0.020
G05     158.9          42.5               12.9 +/-    0.83      18.0 +/-    0.83  0.030 / 0.020
G06     44.4           32.1                7.7 +/-    1.46      12.9 +/-    1.46  0.250 / 0.160
G12     285.3          78.8                9.7 +/-    0.63       9.8 +/-    0.63  0.110 / 0.200
G19     81.6           23.8               10.5 +/-    1.98      21.2 +/-    1.98  0.040 / 0.050
G24     222.1          17.0               14.8 +/-    2.56      35.0 +/-    2.56  0.040 / 0.050
G25     315.3          35.7                8.5 +/-    0.76      13.4 +/-    0.76  0.060 / 0.070
G29     291.8          12.9               12.3 +/-    2.14      32.2 +/-    2.14  0.070 / 0.100