PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-23:12:30
G02     288.7          81.4               11.0 +/-    0.53      11.1 +/-    0.53  0.120 / 0.320
G05     167.4          24.8               18.0 +/-    1.26      35.3 +/-    1.26  0.110 / 0.320
G06     39.1           51.7               11.0 +/-    0.62      13.6 +/-    0.62  0.040 / 0.030
G12     319.7          58.2               10.1 +/-    0.93      11.6 +/-    0.93  0.040 / 0.020
G17     77.9           16.9               12.7 +/-    1.24      30.3 +/-    1.24  0.050 / 0.050
G19     65.8           32.5               12.2 +/-    0.76      20.4 +/-    0.76  0.050 / 0.040
G24     235.6          29.0               12.6 +/-    1.84      22.6 +/-    1.84  0.030 / 0.050
G25     317.4          20.3               11.0 +/-    1.31      24.0 +/-    1.31  0.030 / 0.040