PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-21:43:00
G10     275.8          44.1               10.4 +/-    0.74      14.2 +/-    0.74  0.040 / 0.050
G13     38.7           11.6                8.6 +/-    3.79      23.1 +/-    3.79  0.040 / 0.050
G15     53.1           43.7                8.9 +/-    0.80      12.3 +/-    0.80  0.100 / 0.160
G20     313.7          63.2                9.7 +/-    0.52      10.7 +/-    0.52  0.090 / 0.150
G21     21.5           75.3                9.1 +/-    0.86       9.4 +/-    0.86  0.120 / 0.360
G24     115.7          18.3               10.7 +/-    2.18      24.6 +/-    2.18  0.120 / 0.320
G27     315.3          23.9                7.6 +/-    3.01      15.2 +/-    3.01  0.240 / 0.630
G29     167.8          24.1               11.8 +/-    2.03      23.6 +/-    2.03  0.200 / 0.540
G32     205.2          15.5               15.9 +/-    2.38      39.1 +/-    2.38  0.030 / 0.050