PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-20:27:50
G02     11.3           69.7                9.0 +/-    0.59       9.5 +/-    0.59  0.150 / 0.410
G05     157.4          45.6               12.6 +/-    0.55      16.8 +/-    0.55  0.150 / 0.380
G06     45.0           29.9                7.3 +/-    1.14      12.8 +/-    1.14  0.030 / 0.040
G12     277.1          78.6                7.5 +/-    0.78       7.7 +/-    0.78  0.030 / 0.030
G19     85.7           18.9                8.5 +/-    0.88      19.3 +/-    0.88  0.050 / 0.100
G24     220.0          14.5               18.3 +/-    2.84      46.0 +/-    2.84  0.050 / 0.120
G25     313.4          38.9                6.7 +/-    1.45      10.0 +/-    1.45  0.050 / 0.040
G29     295.0          17.1                7.5 +/-    2.31      17.7 +/-    2.31  0.050 / 0.050