PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/24-22:13:10
G03     223.9          64.1                9.1 +/-    1.31      10.0 +/-    1.31  0.250 / 0.290
G07     252.6          13.3                9.3 +/-    2.04      24.1 +/-    2.04  0.230 / 0.240
G09     307.5          24.6                7.9 +/-    0.95      15.6 +/-    0.95  0.050 / 0.040
G14     104.7          9.7                11.2 +/-    2.99      31.4 +/-    2.99  0.040 / 0.050
G16     116.3          62.5               10.6 +/-    0.45      11.8 +/-    0.45  0.040 / 0.040
G22     192.2          48.9               10.4 +/-    0.74      13.2 +/-    0.74  0.030 / 0.040
G23     322.3          52.3                8.3 +/-    0.39      10.2 +/-    0.39  0.170 / 0.470
G26     63.3           50.4                7.0 +/-    1.14       8.7 +/-    1.14  0.150 / 0.400
G31     54.4           18.7                6.3 +/-    2.18      14.3 +/-    2.18  0.050 / 0.060