PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-12:58:00
G02     33.7           54.7                3.3 +/-    0.52       4.0 +/-    0.52  0.030 / 0.040
G05     142.1          63.0                5.3 +/-    0.67       5.9 +/-    0.67  0.040 / 0.040
G06     54.8           14.4                1.2 +/-    2.81       3.1 +/-    2.81  0.040 / 0.040
G12     195.1          65.2                2.3 +/-    1.81       2.5 +/-    1.81  0.030 / 0.050
G19     100.7          10.7                3.7 +/-    1.79      10.3 +/-    1.79  0.090 / 0.220
G25     287.3          58.5                3.5 +/-    1.13       4.0 +/-    1.13  0.080 / 0.130
G29     309.1          30.0                3.1 +/-    1.64       5.5 +/-    1.64  0.020 / 0.040