PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-23:12:30
G02     256.0          79.0               14.1 +/-    0.39      14.3 +/-    0.39  0.130 / 0.350
G05     169.6          19.7               19.9 +/-    1.86      44.1 +/-    1.86  0.160 / 0.390
G06     39.3           57.4               13.3 +/-    0.49      15.5 +/-    0.49  0.030 / 0.040
G12     320.7          52.5               14.1 +/-    1.28      17.2 +/-    1.28  0.030 / 0.040
G17     73.4           20.0               13.0 +/-    0.79      28.5 +/-    0.79  0.090 / 0.110
G19     60.4           36.0               13.2 +/-    0.73      20.5 +/-    0.73  0.080 / 0.140
G24     240.7          32.6               17.2 +/-    1.75      28.5 +/-    1.75  0.040 / 0.060
G25     316.9          15.4                9.7 +/-    2.60      23.8 +/-    2.60  0.050 / 0.060