PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-05:27:50
G08     266.7          17.1                8.7 +/-    1.21      20.6 +/-    1.21  0.170 / 0.120
G10     67.6           56.0                4.2 +/-    0.49       5.0 +/-    0.49  0.170 / 0.110
G11     309.7          18.8                1.8 +/-    7.34       4.0 +/-    7.34  0.040 / 0.010
G14     272.5          67.9                6.0 +/-    0.95       6.5 +/-    0.95  0.030 / 0.010
G18     310.6          35.2                4.6 +/-    1.17       7.3 +/-    1.17  0.160 / 0.370
G20     98.1           34.9                5.0 +/-    1.19       7.9 +/-    1.19  0.170 / 0.330
G21     155.5          13.1                3.4 +/-    3.14       8.8 +/-    3.14  0.040 / 0.060
G27     230.5          14.6                8.9 +/-    1.70      22.3 +/-    1.70  0.040 / 0.050
G31     176.9          33.9                6.5 +/-    1.30      10.6 +/-    1.30  0.140 / 0.110
G32     339.2          73.5                2.6 +/-    0.43       2.7 +/-    0.43  0.150 / 0.090