PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-01:42:30
G07     308.7          47.9                4.0 +/-    1.43       5.2 +/-    1.43  0.110 / 0.280
G08     125.3          41.7                8.0 +/-    1.30      11.4 +/-    1.30  0.130 / 0.260
G09     281.9          84.5                3.4 +/-    0.69       3.4 +/-    0.69  0.060 / 0.070
G16     42.6           20.9                3.3 +/-    2.25       7.2 +/-    2.25  0.050 / 0.080
G23     145.6          62.6                6.7 +/-    0.69       7.5 +/-    0.69  0.130 / 0.260
G27     77.5           36.9                6.1 +/-    1.17       9.4 +/-    1.17  0.150 / 0.380
G30     285.6          20.1                2.9 +/-    0.97       6.4 +/-    0.97  0.040 / 0.050