PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-22:27:50
G10     275.8          44.1               10.2 +/-    0.79      13.9 +/-    0.79  0.040 / 0.040
G13     38.7           11.6                6.4 +/-   11.44      17.2 +/-   11.44  0.050 / 0.040
G15     52.9           43.3                8.5 +/-    0.91      11.7 +/-    0.91  0.500 / 0.590
G20     313.1          63.0                8.6 +/-    0.46       9.5 +/-    0.46  0.300 / 0.390
G21     21.5           75.3                9.5 +/-    0.76       9.8 +/-    0.76  0.040 / 0.060
G24     115.5          18.3               10.4 +/-    1.83      23.9 +/-    1.83  0.050 / 0.070
G27     315.3          23.9                6.9 +/-    1.55      13.9 +/-    1.55  0.170 / 0.330
G29     167.7          23.9               11.2 +/-    1.80      22.5 +/-    1.80  0.270 / 0.250
G32     205.2          15.2               14.7 +/-    2.27      36.3 +/-    2.27  0.090 / 0.130