PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-23:43:00
G02     259.2          79.5                8.9 +/-    0.64       9.1 +/-    0.64  0.090 / 0.150
G05     169.3          20.2               12.8 +/-    0.95      27.9 +/-    0.95  0.090 / 0.150
G06     39.1           57.1                9.1 +/-    0.75      10.6 +/-    0.75  0.180 / 0.400
G12     320.7          53.1                9.3 +/-    2.04      11.3 +/-    2.04  0.180 / 0.310
G17     74.0           19.5                8.9 +/-    0.60      19.9 +/-    0.60  0.030 / 0.040
G19     60.9           35.7                9.2 +/-    0.97      14.4 +/-    0.97  0.030 / 0.030
G24     240.0          32.2               12.7 +/-    0.77      21.2 +/-    0.77  0.040 / 0.050
G25     317.0          16.1                7.4 +/-    3.18      17.9 +/-    3.18  0.030 / 0.050