PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/19-01:28:10
G02     16.1           67.9                9.3 +/-    1.01      10.0 +/-    1.01  0.130 / 0.350
G05     155.9          47.0               13.4 +/-    1.06      17.6 +/-    1.06  0.170 / 0.450
G06     44.6           31.8                7.3 +/-    1.81      12.3 +/-    1.81  0.020 / 0.030
G12     275.3          78.3               10.7 +/-    1.48      10.9 +/-    1.48  0.020 / 0.030
G19     86.2           19.2                8.7 +/-    3.11      19.5 +/-    3.11  0.100 / 0.180
G24     218.1          13.5               11.1 +/-    4.64      28.6 +/-    4.64  0.120 / 0.140
G25     312.5          41.3               10.4 +/-    0.76      14.9 +/-    0.76  0.100 / 0.090
G29     297.1          20.4                8.6 +/-    0.90      18.6 +/-    0.90  0.080 / 0.080