PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/25-04:28:00
G02     327.9          80.6                1.9 +/-    0.46       1.9 +/-    0.46  0.170 / 0.280
G05     165.7          29.6                4.7 +/-    1.96       8.4 +/-    1.96  0.210 / 0.130
G06     38.7           50.0                1.6 +/-    1.05       2.1 +/-    1.05  0.070 / 0.090
G12     317.0          64.1                2.3 +/-    0.80       2.5 +/-    0.80  0.060 / 0.080
G17     83.2           12.1                2.7 +/-    2.59       7.1 +/-    2.59  0.040 / 0.030
G19     70.3           30.3               -9.6 +/-    1.90     -16.8 +/-    1.90  0.030 / 0.030
G24     229.3          25.0                4.8 +/-    2.18       9.3 +/-    2.18  0.110 / 0.120
G25     317.2          27.5                1.3 +/-    2.99       2.4 +/-    2.99  0.140 / 0.130