PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-19:57:50
G08     310.9          18.1               10.1 +/-    2.94      23.3 +/-    2.94  0.080 / 0.080
G10     335.7          60.7                9.2 +/-    0.46      10.4 +/-    0.46  0.060 / 0.080
G14     217.8          27.4               12.4 +/-    3.26      22.9 +/-    3.26  0.040 / 0.050
G20     40.8           59.2               10.8 +/-    0.61      12.4 +/-    0.61  0.030 / 0.050
G21     134.4          57.7               12.9 +/-    0.33      14.9 +/-    0.33  0.210 / 0.240
G24     75.7           30.7               10.7 +/-    0.85      18.4 +/-    0.85  0.140 / 0.320
G27     275.1          37.8               10.6 +/-    1.63      16.0 +/-    1.63  0.050 / 0.080
G32     222.4          53.3               12.8 +/-    1.50      15.5 +/-    1.50  0.070 / 0.090