PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-22:57:50
G01     318.6          20.3                7.5 +/-    2.48      16.4 +/-    2.48  0.160 / 0.380
G08     259.1          13.2               11.7 +/-    1.47      30.5 +/-    1.47  0.160 / 0.260
G10     81.8           51.0               10.1 +/-    0.60      12.6 +/-    0.60  0.070 / 0.280
G11     304.1          21.7                7.0 +/-    2.91      14.7 +/-    2.91  0.080 / 0.230
G14     290.4          69.4                7.8 +/-    0.48       8.3 +/-    0.48  0.040 / 0.050
G18     304.1          41.4                8.1 +/-    1.14      11.5 +/-    1.14  0.040 / 0.050
G20     106.6          27.3               10.1 +/-    1.98      18.8 +/-    1.98  0.180 / 0.280
G31     174.4          43.5               10.5 +/-    0.98      14.5 +/-    0.98  0.240 / 0.350
G32     10.2           66.8                7.2 +/-    0.34       7.8 +/-    0.34  0.060 / 0.090