PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-00:13:10
G05     49.2           15.2                7.8 +/-    1.67      19.3 +/-    1.67  0.150 / 0.460
G10     236.8          14.8               14.4 +/-    1.45      36.1 +/-    1.45  0.150 / 0.340
G13     73.0           35.3               12.3 +/-    0.89      19.4 +/-    0.89  0.110 / 0.240
G15     120.6          53.4               13.7 +/-    0.37      16.6 +/-    0.37  0.100 / 0.310
G16     314.0          12.2                6.5 +/-    1.94      17.3 +/-    1.94  0.050 / 0.080
G20     249.5          37.8               13.9 +/-    2.03      21.0 +/-    2.03  0.040 / 0.080
G21     314.7          47.5               11.2 +/-    1.09      14.6 +/-    1.09  0.060 / 0.110
G25     199.0          10.6               13.9 +/-    3.02      38.3 +/-    3.02  0.060 / 0.090
G26     287.0          19.8                7.1 +/-    2.25      15.8 +/-    2.25  0.030 / 0.040
G29     153.2          69.5               12.9 +/-    0.93      13.7 +/-    0.93  0.030 / 0.050