PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/02-19:58:00
G02     56.4           35.6                6.1 +/-    1.00       9.6 +/-    1.00  0.040 / 0.070
G05     61.9           63.4                6.6 +/-    0.70       7.3 +/-    0.70  0.050 / 0.070
G12     185.3          36.3                8.4 +/-    2.30      13.0 +/-    2.30  0.050 / 0.090
G13     128.6          13.3               10.2 +/-    1.77      26.4 +/-    1.77  0.050 / 0.110
G15     165.0          10.7                0.7 +/-   29.78       2.0 +/-   29.78  0.040 / 0.090
G21     269.4          15.0                9.2 +/-    1.69      22.9 +/-    1.69  0.060 / 0.100
G25     241.9          53.7                7.7 +/-    1.05       9.2 +/-    1.05  0.100 / 0.300
G29     327.4          52.5                5.7 +/-    1.15       7.0 +/-    1.15  0.110 / 0.390