PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-18:12:50
G02     59.2           33.9                9.8 +/-    0.75      15.9 +/-    0.75  0.150 / 0.440
G05     56.4           60.8               11.3 +/-    0.49      12.8 +/-    0.49  0.120 / 0.340
G12     183.7          31.0               14.1 +/-    2.50      24.1 +/-    2.50  0.080 / 0.110
G13     125.2          16.1               14.1 +/-    1.30      34.2 +/-    1.30  0.080 / 0.150
G15     163.4          13.5               14.2 +/-    2.41      36.5 +/-    2.41  0.050 / 0.070
G21     272.8          17.5               13.9 +/-    2.43      32.6 +/-    2.43  0.040 / 0.070
G25     235.5          51.0               12.5 +/-    1.18      15.6 +/-    1.18  0.040 / 0.050
G29     329.8          55.9               11.5 +/-    1.18      13.6 +/-    1.18  0.030 / 0.040