PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-05:27:40
G02     58.5           32.9                3.8 +/-    2.00       6.3 +/-    2.00  0.070 / 0.170
G05     60.1           61.8                6.4 +/-    0.55       7.2 +/-    0.55  0.110 / 0.150
G12     186.7          37.0                6.3 +/-    0.97       9.6 +/-    0.97  0.060 / 0.050
G13     128.9          13.7                7.2 +/-    2.43      18.5 +/-    2.43  0.080 / 0.060
G15     164.1          11.3                1.7 +/-   15.69       4.6 +/-   15.69  0.240 / 0.330
G21     271.2          18.9                6.2 +/-    1.38      14.0 +/-    1.38  0.220 / 0.280
G25     236.2          53.1                6.4 +/-    4.18       7.7 +/-    4.18  0.220 / 0.530
G29     332.7          58.0                5.8 +/-    0.49       6.7 +/-    0.49  0.280 / 0.400