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                7.3 +/-    1.54      14.3 +/-    1.54  0.040 / 0.040
G05     47.9           53.4                8.2 +/-    0.61      10.0 +/-    0.61  0.030 / 0.040
G12     180.4          19.2                7.8 +/-    2.14      17.4 +/-    2.14  0.120 / 0.210
G13     116.3          22.8                8.2 +/-    1.52      16.9 +/-    1.52  0.160 / 0.210
G15     156.1          23.0                8.5 +/-    1.15      17.4 +/-    1.15  0.140 / 0.200
G21     281.6          24.1                8.8 +/-    1.92      17.5 +/-    1.92  0.110 / 0.180
G25     223.0          42.7               12.5 +/-    2.20      17.4 +/-    2.20  0.070 / 0.100
G29     336.6          65.6                8.7 +/-    0.62       9.4 +/-    0.62  0.090 / 0.110