PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/21-00:12:30
G08     299.2          21.0                8.0 +/-    1.25      17.2 +/-    1.25  0.040 / 0.080
G10     7.8            62.7                7.0 +/-    0.54       7.8 +/-    0.54  0.040 / 0.080
G14     227.7          43.4               10.7 +/-    0.63      14.8 +/-    0.63  0.050 / 0.110
G20     63.6           52.8                7.7 +/-    0.94       9.3 +/-    0.94  0.060 / 0.100
G21     146.1          42.9                9.5 +/-    0.76      13.3 +/-    0.76  0.090 / 0.130
G24     58.4           26.8                6.8 +/-    1.87      12.7 +/-    1.87  0.070 / 0.110
G27     256.5          32.9               10.0 +/-    1.44      16.6 +/-    1.44  0.070 / 0.110
G32     241.9          66.3               10.0 +/-    0.43      10.8 +/-    0.43  0.060 / 0.140