PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-20:12:30
G02     283.4          80.8                7.8 +/-    0.63       7.9 +/-    0.63  0.140 / 0.370
G05     167.8          24.5                9.0 +/-    2.26      17.7 +/-    2.26  0.290 / 0.270
G06     39.5           49.9                8.1 +/-    0.70      10.2 +/-    0.70  0.040 / 0.030
G12     319.8          59.0                7.5 +/-    0.95       8.5 +/-    0.95  0.030 / 0.030
G17     77.1           18.3                7.8 +/-    1.53      17.9 +/-    1.53  0.090 / 0.120
G19     66.2           32.0                6.2 +/-    1.74      10.5 +/-    1.74  0.080 / 0.110
G24     236.4          29.1               10.6 +/-    1.06      18.8 +/-    1.06  0.030 / 0.050
G25     317.4          19.5                6.8 +/-    2.60      15.0 +/-    2.60  0.050 / 0.040