PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-01:42:40
G02     58.1           33.7                8.1 +/-    0.66      13.3 +/-    0.66  0.060 / 0.090
G05     60.5           61.8                9.4 +/-    0.50      10.5 +/-    0.50  0.070 / 0.080
G12     184.7          34.5               12.7 +/-    1.02      20.3 +/-    1.02  0.090 / 0.310
G13     130.1          13.6               13.5 +/-    3.54      34.6 +/-    3.54  0.130 / 0.350
G15     165.2          10.2               -5.9 +/-   26.61     -16.3 +/-   26.61  0.030 / 0.040
G21     269.2          15.4               10.8 +/-    1.68      26.6 +/-    1.68  0.030 / 0.030
G25     241.5          53.5               11.7 +/-    1.14      14.1 +/-    1.14  0.060 / 0.110
G29     326.2          51.5                9.2 +/-    0.67      11.4 +/-    0.67  0.050 / 0.110