PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-17:28:00
G02     228.0          68.5                9.0 +/-    1.00       9.6 +/-    1.00  0.300 / 0.380
G05     174.3          10.5               -5.4 +/-   20.29     -14.8 +/-   20.29  0.280 / 0.420
G06     43.3           64.5                7.6 +/-    0.53       8.4 +/-    0.53  0.080 / 0.110
G12     320.3          44.2                8.3 +/-    0.37      11.3 +/-    0.37  0.060 / 0.120
G17     63.5           28.7                7.6 +/-    0.80      13.7 +/-    0.80  0.040 / 0.030
G19     51.2           41.4                8.7 +/-    0.90      12.3 +/-    0.90  0.040 / 0.040
G24     253.1          37.8               11.2 +/-    1.39      16.9 +/-    1.39  0.070 / 0.080
G28     127.4          11.4                9.4 +/-    4.85      25.5 +/-    4.85  0.070 / 0.070