PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/23-23:42:40
G02     356.4          76.2                9.9 +/-    0.46      10.2 +/-    0.46  0.020 / 0.030
G05     161.6          37.5               14.0 +/-    1.56      21.2 +/-    1.56  0.030 / 0.030
G06     42.7           36.5                8.2 +/-    1.36      12.7 +/-    1.36  0.150 / 0.200
G12     303.9          75.1                9.4 +/-    0.96       9.7 +/-    0.96  0.150 / 0.360
G17     87.7           11.8               10.7 +/-    2.04      28.8 +/-    2.04  0.040 / 0.060
G19     77.2           26.7                9.4 +/-    2.04      17.6 +/-    2.04  0.040 / 0.060
G24     225.6          20.4               14.8 +/-    3.02      32.3 +/-    3.02  0.100 / 0.130
G25     316.7          31.2               10.8 +/-    1.21      18.5 +/-    1.21  0.080 / 0.110