PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-15:43:00
G02     26.3           60.2                8.0 +/-    0.84       9.1 +/-    0.84  0.060 / 0.040
G05     150.3          58.2                9.5 +/-    0.34      11.0 +/-    0.34  0.050 / 0.050
G06     52.5           17.1                7.0 +/-    2.25      16.6 +/-    2.25  0.030 / 0.030
G12     196.4          69.2                8.7 +/-    0.45       9.2 +/-    0.45  0.040 / 0.030
G19     96.4           14.8                8.2 +/-    2.67      20.6 +/-    2.67  0.030 / 0.030
G25     298.0          54.1                7.9 +/-    2.66       9.5 +/-    2.66  0.030 / 0.030
G29     305.2          25.5                7.5 +/-    1.12      14.4 +/-    1.12  0.220 / 0.280