PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-01:12:30
G02     358.9          75.8                8.4 +/-    0.59       8.6 +/-    0.59  0.020 / 0.030
G05     161.4          37.7               15.2 +/-    1.11      22.9 +/-    1.11  0.030 / 0.040
G06     42.6           37.0                7.2 +/-    1.03      11.0 +/-    1.03  0.040 / 0.090
G12     304.9          74.3                8.1 +/-    0.89       8.3 +/-    0.89  0.040 / 0.070
G17     87.3           12.8               10.3 +/-    1.06      27.0 +/-    1.06  0.080 / 0.180
G19     77.5           26.3                9.8 +/-    1.34      18.6 +/-    1.34  0.080 / 0.200
G24     225.9          20.5               13.8 +/-    1.18      30.0 +/-    1.18  0.040 / 0.030
G25     316.8          31.0                7.6 +/-    1.57      13.1 +/-    1.57  0.040 / 0.040