PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-21:58:10
G03     260.1          70.0                8.8 +/-    0.31       9.3 +/-    0.31  0.040 / 0.040
G09     301.6          18.6                8.9 +/-    1.99      20.3 +/-    1.99  0.040 / 0.050
G14     93.0           21.7                8.6 +/-    2.30      18.2 +/-    2.30  0.120 / 0.280
G16     131.9          54.3               12.1 +/-    0.74      14.5 +/-    0.74  0.110 / 0.240
G22     203.0          61.5                9.9 +/-    0.66      11.1 +/-    0.66  0.040 / 0.050
G23     314.7          44.4                8.2 +/-    0.86      11.1 +/-    0.86  0.050 / 0.060
G26     78.7           53.6                7.4 +/-    0.85       9.0 +/-    0.85  0.040 / 0.030
G31     49.7           24.0                6.5 +/-    2.66      13.1 +/-    2.66  0.040 / 0.030