PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-16:42:30
G02     24.5           61.3                6.6 +/-    0.88       7.5 +/-    0.88  0.030 / 0.040
G05     149.5          58.0               10.0 +/-    0.72      11.5 +/-    0.72  0.030 / 0.050
G06     52.3           17.3                5.9 +/-    0.49      14.0 +/-    0.49  0.040 / 0.060
G12     195.4          69.3                7.3 +/-    0.65       7.7 +/-    0.65  0.030 / 0.070
G19     95.7           15.6                9.6 +/-    1.19      23.4 +/-    1.19  0.030 / 0.040
G25     299.5          53.2                8.7 +/-    1.07      10.6 +/-    1.07  0.040 / 0.030
G29     304.6          24.8                9.4 +/-    1.64      18.5 +/-    1.64  0.080 / 0.120