PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-00:27:20
G02     31.6           56.8                9.0 +/-    0.75      10.5 +/-    0.75  0.030 / 0.030
G05     140.1          60.8               12.8 +/-    0.72      14.4 +/-    0.72  0.040 / 0.030
G06     52.9           16.7                9.0 +/-    2.10      21.5 +/-    2.10  0.030 / 0.040
G12     200.0          69.7               11.6 +/-    0.38      12.3 +/-    0.38  0.030 / 0.040
G19     97.8           12.5               11.1 +/-    1.36      29.2 +/-    1.36  0.050 / 0.050
G25     300.5          51.5               10.1 +/-    1.54      12.5 +/-    1.54  0.040 / 0.050
G29     305.4          25.5                9.3 +/-    1.01      18.0 +/-    1.01  0.200 / 0.170