PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-15:28:00
G02     69.1           24.7                7.7 +/-    0.87      15.1 +/-    0.87  0.030 / 0.040
G05     47.9           53.4                7.1 +/-    0.45       8.6 +/-    0.45  0.030 / 0.040
G12     180.4          19.2                9.6 +/-    2.22      21.5 +/-    2.22  0.070 / 0.200
G13     116.3          22.8               10.3 +/-    0.72      21.1 +/-    0.72  0.080 / 0.170
G15     156.1          23.0                9.8 +/-    1.46      20.0 +/-    1.46  0.060 / 0.110
G21     281.6          24.1                8.3 +/-    1.19      16.5 +/-    1.19  0.060 / 0.110
G25     223.0          42.7                9.7 +/-    1.80      13.5 +/-    1.80  0.050 / 0.100
G29     336.6          65.6                6.7 +/-    1.17       7.3 +/-    1.17  0.050 / 0.080