PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-19:42:40
G02     278.5          80.5                8.6 +/-    0.55       8.7 +/-    0.55  0.110 / 0.130
G05     168.1          23.8               11.5 +/-    1.38      23.1 +/-    1.38  0.080 / 0.150
G06     39.5           50.3                6.5 +/-    0.72       8.2 +/-    0.72  0.110 / 0.240
G12     320.0          58.5                6.6 +/-    2.00       7.6 +/-    2.00  0.090 / 0.220
G17     76.4           18.9                8.2 +/-    0.69      18.4 +/-    0.69  0.040 / 0.040
G19     65.6           32.3                7.6 +/-    0.74      12.8 +/-    0.74  0.040 / 0.030
G24     237.1          29.5                9.0 +/-    1.68      15.9 +/-    1.68  0.040 / 0.050
G25     317.3          18.9                7.2 +/-    1.64      16.3 +/-    1.64  0.030 / 0.050