PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-01:43:00
G01     319.7          17.3               -5.5 +/-   33.64     -12.8 +/-   33.64  0.040 / 0.060
G08     264.3          14.6                9.9 +/-    1.71      24.8 +/-    1.71  0.050 / 0.050
G10     77.0           52.9                8.4 +/-    1.29      10.3 +/-    1.29  0.170 / 0.250
G11     306.0          21.0                6.1 +/-    2.50      13.2 +/-    2.50  0.240 / 0.360
G14     284.7          69.3                8.3 +/-    0.68       8.8 +/-    0.68  0.040 / 0.040
G18     306.8          39.2                7.8 +/-    1.18      11.5 +/-    1.18  0.030 / 0.050
G20     103.5          30.6               10.3 +/-    0.88      17.8 +/-    0.88  0.100 / 0.170
G27     226.0          10.8               11.7 +/-    3.03      32.1 +/-    3.03  0.100 / 0.150
G31     175.0          40.4               11.5 +/-    1.27      16.6 +/-    1.27  0.160 / 0.280
G32     1.2            69.6                8.3 +/-    0.47       8.8 +/-    0.47  0.170 / 0.270