PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/15-09:42:30
G02     36.8           51.4                5.4 +/-    0.42       6.7 +/-    0.42  0.040 / 0.030
G05     139.9          63.0                8.0 +/-    0.45       8.9 +/-    0.45  0.040 / 0.030
G06     54.1           14.3                2.8 +/-    2.31       7.1 +/-    2.31  0.030 / 0.040
G12     192.4          65.3                7.5 +/-    0.56       8.1 +/-    0.56  0.030 / 0.040
G25     294.0          54.7                3.6 +/-    1.19       4.4 +/-    1.19  0.080 / 0.160
G29     307.6          28.2                2.9 +/-    1.27       5.3 +/-    1.27  0.110 / 0.130