PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-23:12:30
G02     265.3          80.1               10.8 +/-    0.40      11.0 +/-    0.40  0.060 / 0.040
G05     168.9          21.4               16.9 +/-    0.65      36.0 +/-    0.65  0.050 / 0.040
G06     39.1           55.5               11.5 +/-    0.77      13.7 +/-    0.77  0.090 / 0.110
G12     320.5          54.4               10.9 +/-    1.16      13.0 +/-    1.16  0.080 / 0.120
G17     74.9           19.0               10.0 +/-    2.42      22.6 +/-    2.42  0.160 / 0.350
G19     62.2           34.8               11.1 +/-    0.77      17.6 +/-    0.77  0.240 / 0.360
G24     239.0          31.4               12.6 +/-    1.59      21.4 +/-    1.59  0.120 / 0.180
G25     317.1          17.0                9.1 +/-    2.66      21.5 +/-    2.66  0.100 / 0.180