PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-19:27:50
G08     320.6          11.0               -2.9 +/-   37.97      -7.9 +/-   37.97  0.060 / 0.070
G10     310.7          56.3                9.1 +/-    0.67      10.8 +/-    0.67  0.050 / 0.070
G14     212.3          14.9               10.9 +/-    3.92      27.1 +/-    3.92  0.190 / 0.650
G15     45.5           20.7                8.1 +/-    0.96      17.5 +/-    0.96  0.210 / 0.540
G20     13.5           63.9                9.9 +/-    0.36      10.9 +/-    0.36  0.070 / 0.130
G21     114.0          69.7               11.6 +/-    0.40      12.3 +/-    0.40  0.080 / 0.140
G24     91.7           29.1               10.9 +/-    0.61      19.5 +/-    0.61  0.030 / 0.050
G27     292.7          36.9               11.1 +/-    1.02      17.0 +/-    1.02  0.030 / 0.050
G32     213.1          39.8               12.7 +/-    0.86      18.5 +/-    0.86  0.170 / 0.380