PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-13:43:00
G02     25.5           61.0                2.8 +/-    0.69       3.1 +/-    0.69  0.040 / 0.050
G05     153.4          55.7                6.2 +/-    0.72       7.4 +/-    0.72  0.040 / 0.050
G06     51.0           19.5                1.8 +/-    0.56       4.1 +/-    0.56  0.030 / 0.030
G12     203.7          72.6                4.8 +/-    1.04       5.0 +/-    1.04  0.030 / 0.030
G19     94.6           15.6                4.7 +/-    1.66      11.5 +/-    1.66  0.030 / 0.030
G25     300.2          53.6                4.6 +/-    1.34       5.5 +/-    1.34  0.040 / 0.040
G29     303.7          24.4                5.0 +/-    1.68      10.0 +/-    1.68  0.100 / 0.170