PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-01:28:10
G07     318.7          52.6                5.9 +/-    0.64       7.2 +/-    0.64  0.100 / 0.180
G08     114.0          47.2                8.1 +/-    0.47      10.6 +/-    0.47  0.100 / 0.170
G09     194.6          81.3                4.7 +/-    0.81       4.7 +/-    0.81  0.050 / 0.050
G16     44.2           13.7                1.1 +/-    3.14       2.7 +/-    3.14  0.040 / 0.050
G23     151.4          53.5                6.4 +/-    0.58       7.8 +/-    0.58  0.200 / 0.520
G27     66.6           35.6                5.6 +/-    0.71       8.8 +/-    0.71  0.300 / 0.410
G28     228.4          12.9                4.5 +/-   11.30      11.8 +/-   11.30  0.160 / 0.330
G30     292.0          25.3                4.5 +/-    1.82       8.8 +/-    1.82  0.130 / 0.330