PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-00:12:40
G10     279.5          45.8               12.7 +/-    1.24      16.9 +/-    1.24  0.160 / 0.140
G15     50.7           40.1                9.2 +/-    0.64      13.3 +/-    0.64  0.100 / 0.140
G20     318.3          63.5               10.5 +/-    0.87      11.6 +/-    0.87  0.050 / 0.040
G21     33.8           76.5               12.0 +/-    0.76      12.3 +/-    0.76  0.050 / 0.030
G24     112.4          20.0               13.4 +/-    2.69      29.6 +/-    2.69  0.040 / 0.060
G27     313.5          25.9                9.2 +/-    2.28      17.5 +/-    2.28  0.050 / 0.080
G29     167.7          20.4               13.2 +/-    1.65      28.7 +/-    1.65  0.100 / 0.180
G32     206.1          17.5               16.2 +/-    1.35      38.0 +/-    1.35  0.130 / 0.370