PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/18-22:43:10
G03     198.1          37.3               11.8 +/-    0.84      17.9 +/-    0.84  0.150 / 0.300
G07     275.2          28.7                9.3 +/-    1.98      16.7 +/-    1.98  0.150 / 0.240
G08     150.3          15.6               12.0 +/-    2.30      29.4 +/-    2.30  0.220 / 0.540
G09     321.7          53.3                8.5 +/-    0.48      10.3 +/-    0.48  0.190 / 0.390
G16     52.2           51.2                8.5 +/-    0.68      10.5 +/-    0.68  0.040 / 0.030
G22     183.3          20.5               10.4 +/-    1.97      22.7 +/-    1.97  0.030 / 0.040
G23     3.0            78.7                8.0 +/-    0.91       8.2 +/-    0.91  0.080 / 0.080
G26     44.1           25.0                7.1 +/-    2.33      14.0 +/-    2.33  0.110 / 0.100
G27     116.3          24.7               13.2 +/-    0.80      25.9 +/-    0.80  0.040 / 0.070