PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-01:27:50
G01     321.1          11.6              -18.3 +/-   20.70     -49.3 +/-   20.70  0.050 / 0.050
G08     270.7          17.4                9.8 +/-    2.12      23.0 +/-    2.12  0.040 / 0.060
G10     65.9           56.3                8.9 +/-    0.70      10.5 +/-    0.70  0.230 / 0.480
G14     267.4          66.0                8.6 +/-    1.17       9.3 +/-    1.17  0.160 / 0.600
G18     311.6          33.8                6.2 +/-    0.77      10.1 +/-    0.77  0.150 / 0.200
G20     97.3           35.3                8.4 +/-    0.88      13.3 +/-    0.88  0.130 / 0.190
G21     155.6          14.8               11.0 +/-    1.48      27.6 +/-    1.48  0.060 / 0.100
G27     230.9          15.3               12.9 +/-    1.91      31.8 +/-    1.91  0.070 / 0.100
G31     176.7          33.1               11.7 +/-    2.03      19.2 +/-    2.03  0.020 / 0.020
G32     342.7          73.7                8.1 +/-    0.39       8.4 +/-    0.39  0.030 / 0.030