PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-15:12:40
G02     57.8           33.8                7.8 +/-    1.75      12.7 +/-    1.75  0.030 / 0.030
G05     64.0           65.7                9.2 +/-    0.36      10.0 +/-    0.36  0.030 / 0.030
G12     183.0          33.5                9.9 +/-    0.75      16.2 +/-    0.75  0.100 / 0.380
G13     128.0          13.7               10.7 +/-    3.15      27.5 +/-    3.15  0.190 / 0.400
G15     164.0          11.6                9.2 +/-   15.25      24.7 +/-   15.25  0.060 / 0.060
G21     270.1          15.6                6.5 +/-    2.25      15.9 +/-    2.25  0.070 / 0.090
G25     240.6          53.3                8.8 +/-    4.29      10.7 +/-    4.29  0.070 / 0.090
G29     326.9          52.0                7.1 +/-    0.88       8.7 +/-    0.88  0.080 / 0.100