PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-04:27:40
G02     32.6           56.1                3.2 +/-    1.10       3.7 +/-    1.10  0.020 / 0.020
G05     140.4          60.3                6.9 +/-    0.47       7.8 +/-    0.47  0.030 / 0.030
G06     52.1           18.7                2.6 +/-    3.24       6.0 +/-    3.24  0.160 / 0.140
G12     206.2          71.4                6.0 +/-    0.54       6.2 +/-    0.54  0.110 / 0.150
G19     97.8           11.8                4.3 +/-    1.39      11.5 +/-    1.39  0.030 / 0.030
G25     301.7          50.7                4.2 +/-    2.47       5.3 +/-    2.47  0.040 / 0.030
G29     305.5          26.1                4.1 +/-    1.47       7.8 +/-    1.47  0.060 / 0.050