PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/30-18:27:50
G01     303.7          35.8                9.7 +/-    2.79      15.2 +/-    2.79  0.050 / 0.050
G10     109.9          36.4               11.5 +/-    0.60      17.9 +/-    0.60  0.050 / 0.060
G11     275.8          28.1               10.4 +/-    2.00      19.0 +/-    2.00  0.060 / 0.100
G14     6.8            64.8                9.2 +/-    0.69      10.1 +/-    0.69  0.070 / 0.070
G18     265.1          51.4               11.0 +/-    1.77      13.7 +/-    1.77  0.030 / 0.040
G20     122.8          11.1               11.3 +/-    2.95      30.9 +/-    2.95  0.030 / 0.040
G22     311.2          28.9                9.4 +/-    0.91      16.9 +/-    0.91  0.100 / 0.170
G25     73.2           16.1               10.0 +/-    1.45      24.2 +/-    1.45  0.080 / 0.190
G31     172.2          65.4               11.4 +/-    0.78      12.5 +/-    0.78  0.080 / 0.150
G32     38.7           50.9                9.3 +/-    1.52      11.6 +/-    1.52  0.110 / 0.150