PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/15-01:12:30
G02     32.0           56.5               10.2 +/-    0.63      12.0 +/-    0.63  0.030 / 0.040
G05     139.8          60.8               13.6 +/-    1.11      15.3 +/-    1.11  0.040 / 0.040
G06     52.8           16.9                8.2 +/-    1.10      19.5 +/-    1.10  0.030 / 0.050
G12     201.1          69.9               11.7 +/-    0.71      12.4 +/-    0.71  0.030 / 0.040
G19     97.9           12.3               13.4 +/-    1.57      35.5 +/-    1.57  0.040 / 0.060
G25     300.7          51.4               10.1 +/-    0.87      12.5 +/-    0.87  0.050 / 0.050
G29     305.4          25.6                9.7 +/-    2.08      18.6 +/-    2.08  0.040 / 0.060