PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-01:12:40
G07     326.1          55.8                4.1 +/-    0.48       4.8 +/-    0.48  0.110 / 0.120
G08     104.7          49.9                6.3 +/-    0.67       8.0 +/-    0.67  0.090 / 0.130
G09     181.4          74.8                4.3 +/-    0.37       4.4 +/-    0.37  0.050 / 0.050
G11     151.7          10.2               -4.7 +/-   13.97     -13.1 +/-   13.97  0.030 / 0.040
G23     154.1          47.4                5.2 +/-    0.88       6.8 +/-    0.88  0.050 / 0.050
G27     59.9           33.6                4.2 +/-    2.02       6.9 +/-    2.02  0.040 / 0.040
G28     231.9          17.5                6.0 +/-    2.47      14.0 +/-    2.47  0.200 / 0.690
G30     296.3          28.9                3.4 +/-    2.30       6.2 +/-    2.30  0.280 / 0.700