PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/30-19:13:10
G01     277.5          41.8                9.2 +/-    2.14      13.0 +/-    2.14  0.080 / 0.110
G03     314.9          25.4                8.6 +/-    1.68      16.6 +/-    1.68  0.080 / 0.070
G10     126.6          20.1               11.7 +/-    0.77      25.7 +/-    0.77  0.080 / 0.140
G11     253.5          22.0               11.1 +/-    1.83      23.3 +/-    1.83  0.080 / 0.130
G14     38.3           52.5                9.4 +/-    0.83      11.5 +/-    0.83  0.120 / 0.390
G18     234.5          41.8               11.7 +/-    1.22      16.5 +/-    1.22  0.120 / 0.280
G22     314.7          47.2                8.9 +/-    1.51      11.6 +/-    1.51  0.070 / 0.070
G25     52.6           15.1                8.7 +/-    1.73      21.6 +/-    1.73  0.060 / 0.080
G31     92.8           81.7               11.4 +/-    0.93      11.5 +/-    0.93  0.040 / 0.060
G32     58.9           36.8                8.4 +/-    0.55      12.9 +/-    0.55  0.040 / 0.050