PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-05:27:50
G01     320.2          15.3              -22.6 +/-   12.98     -55.8 +/-   12.98  0.210 / 0.380
G08     263.3          15.5                4.9 +/-    2.07      11.9 +/-    2.07  0.090 / 0.370
G10     73.8           54.2                2.3 +/-    0.40       2.8 +/-    0.40  0.090 / 0.420
G11     306.8          20.8                2.5 +/-    1.54       5.3 +/-    1.54  0.030 / 0.040
G14     282.5          69.5                4.1 +/-    0.55       4.3 +/-    0.55  0.030 / 0.040
G18     308.0          38.1                2.7 +/-    0.71       4.1 +/-    0.71  0.050 / 0.050
G20     101.6          32.3                4.5 +/-    0.70       7.5 +/-    0.70  0.040 / 0.050
G27     227.8          12.1                4.2 +/-    4.00      11.3 +/-    4.00  0.130 / 0.300
G31     176.0          37.9                4.9 +/-    0.83       7.4 +/-    0.83  0.110 / 0.320
G32     350.9          71.6                3.2 +/-    0.76       3.3 +/-    0.76  0.040 / 0.090