PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-23:43:10
G10     266.3          39.0               10.7 +/-    1.42      15.7 +/-    1.42  0.200 / 0.200
G13     42.0           18.0                8.3 +/-    4.61      19.2 +/-    4.61  0.160 / 0.180
G15     59.9           49.2               10.4 +/-    1.20      13.3 +/-    1.20  0.050 / 0.040
G16     280.5          12.8                7.9 +/-    1.86      20.8 +/-    1.86  0.050 / 0.040
G20     295.3          59.4                9.9 +/-    1.42      11.3 +/-    1.42  0.410 / 0.420
G21     359.2          70.7               10.0 +/-    0.97      10.6 +/-    0.97  0.370 / 0.270
G24     122.1          13.6               11.7 +/-    2.23      30.0 +/-    2.23  0.040 / 0.060
G27     319.5          17.5                8.5 +/-    2.73      19.8 +/-    2.73  0.040 / 0.050
G29     166.7          31.9               12.3 +/-    1.69      20.7 +/-    1.69  0.120 / 0.300