PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/04-01:43:10
G07     336.1          59.5                5.4 +/-    0.80       6.1 +/-    0.80  0.080 / 0.120
G08     93.6           51.7                6.1 +/-    0.98       7.6 +/-    0.98  0.110 / 0.100
G09     177.8          67.5                7.3 +/-    0.95       7.9 +/-    0.95  0.050 / 0.050
G11     147.5          14.6                5.0 +/-    3.37      12.5 +/-    3.37  0.040 / 0.050
G23     156.5          40.2                7.5 +/-    0.61      10.9 +/-    0.61  0.110 / 0.180
G27     53.2           30.4                4.4 +/-    1.70       7.7 +/-    1.70  0.130 / 0.200
G28     236.4          22.9                4.8 +/-    1.91       9.8 +/-    1.91  0.060 / 0.080
G30     301.4          33.4                3.7 +/-    1.05       6.1 +/-    1.05  0.060 / 0.090