PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-14:27:40
G02     202.5          26.0                8.4 +/-    1.76      16.1 +/-    1.76  0.090 / 0.280
G06     164.0          63.0               10.1 +/-    1.40      11.2 +/-    1.40  0.130 / 0.300
G12     303.4          10.4               -7.1 +/-   15.31     -19.6 +/-   15.31  0.050 / 0.080
G17     25.7           56.7                7.1 +/-    0.35       8.3 +/-    0.35  0.070 / 0.090
G19     351.2          68.1                6.2 +/-    0.62       6.6 +/-    0.62  0.070 / 0.160
G24     304.2          34.0                7.2 +/-    0.52      11.7 +/-    0.52  0.060 / 0.150
G28     92.3           40.6                7.9 +/-    0.91      11.4 +/-    0.91  0.070 / 0.120