PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-20:57:30
G02     263.2          79.6                9.3 +/-    0.77       9.5 +/-    0.77  0.080 / 0.150
G05     169.1          21.2               13.5 +/-    0.96      28.9 +/-    0.96  0.070 / 0.120
G06     39.4           54.0                9.5 +/-    0.63      11.4 +/-    0.63  0.210 / 0.440
G12     320.6          54.9                7.1 +/-    1.46       8.5 +/-    1.46  0.110 / 0.320
G17     74.3           20.0                8.9 +/-    0.64      19.5 +/-    0.64  0.030 / 0.040
G19     62.5           34.4                9.1 +/-    0.89      14.6 +/-    0.89  0.030 / 0.040
G24     239.6          31.5               13.0 +/-    2.18      22.1 +/-    2.18  0.040 / 0.050
G25     317.1          16.4                8.5 +/-    4.16      20.4 +/-    4.16  0.050 / 0.060