PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-16:43:10
G02     57.4           34.7                7.0 +/-    1.26      11.2 +/-    1.26  0.030 / 0.040
G05     62.0           64.3                7.4 +/-    0.64       8.1 +/-    0.64  0.030 / 0.040
G12     183.7          33.8                8.4 +/-    1.99      13.6 +/-    1.99  0.150 / 0.340
G13     127.7          14.0                8.4 +/-    1.99      21.3 +/-    1.99  0.160 / 0.400
G15     164.7          11.4                5.3 +/-   23.00      14.2 +/-   23.00  0.160 / 0.440
G21     270.3          15.6                9.9 +/-    1.97      24.2 +/-    1.97  0.160 / 0.490
G25     240.2          53.1                8.0 +/-    1.39       9.7 +/-    1.39  0.080 / 0.080
G29     327.4          52.6                6.4 +/-    0.96       7.8 +/-    0.96  0.060 / 0.100