PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-18:58:10
G02     269.0          79.7                7.8 +/-    0.57       7.9 +/-    0.57  0.300 / 0.330
G05     168.8          22.4               11.5 +/-    2.86      23.8 +/-    2.86  0.210 / 0.280
G06     39.5           51.4                8.0 +/-    0.64       9.9 +/-    0.64  0.040 / 0.040
G12     320.3          57.3                7.5 +/-    0.43       8.8 +/-    0.43  0.030 / 0.030
G17     75.1           20.1                8.4 +/-    2.10      18.4 +/-    2.10  0.090 / 0.110
G19     64.4           33.0                6.0 +/-    1.40       9.8 +/-    1.40  0.160 / 0.130
G24     238.6          30.4               21.2 +/-    2.50      36.8 +/-    2.50  0.080 / 0.150
G25     317.2          17.5                8.3 +/-    2.19      19.4 +/-    2.19  0.070 / 0.160