PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-21:57:40
G02     15.4           67.8                7.8 +/-    0.43       8.4 +/-    0.43  0.250 / 0.460
G05     155.6          47.7               11.7 +/-    1.34      15.2 +/-    1.34  0.130 / 0.530
G06     45.6           29.0                7.8 +/-    1.11      13.9 +/-    1.11  0.050 / 0.090
G12     268.6          78.9                8.7 +/-    0.81       8.8 +/-    0.81  0.050 / 0.090
G19     87.1           18.1                9.5 +/-    0.51      21.9 +/-    0.51  0.040 / 0.060
G24     218.4          13.2               13.6 +/-    3.94      35.4 +/-    3.94  0.040 / 0.060
G25     312.4          40.8                9.8 +/-    2.66      14.0 +/-    2.66  0.030 / 0.030
G29     296.7          18.9                9.4 +/-    1.19      21.3 +/-    1.19  0.020 / 0.030