PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-01:57:30
G02     60.7           31.2                8.7 +/-    0.45      14.8 +/-    0.45  0.040 / 0.070
G05     55.6           58.9                9.5 +/-    0.84      10.9 +/-    0.84  0.050 / 0.060
G12     186.0          33.7               12.5 +/-    1.31      20.4 +/-    1.31  0.060 / 0.130
G13     126.2          15.7               13.6 +/-    2.32      33.2 +/-    2.32  0.070 / 0.120
G15     162.1          13.9               15.5 +/-    2.60      39.6 +/-    2.60  0.100 / 0.240
G21     272.9          18.8               10.0 +/-    2.26      22.7 +/-    2.26  0.080 / 0.250
G25     234.3          51.2               10.9 +/-    0.96      13.6 +/-    0.96  0.080 / 0.080
G29     332.9          58.8               10.6 +/-    1.41      12.1 +/-    1.41  0.060 / 0.100