PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-00:42:30
G07     320.2          53.3                5.5 +/-    1.73       6.6 +/-    1.73  0.130 / 0.180
G08     111.2          48.0                8.3 +/-    0.94      10.7 +/-    0.94  0.120 / 0.190
G09     186.7          79.3                5.2 +/-    1.35       5.3 +/-    1.35  0.160 / 0.300
G16     44.5           12.5                2.1 +/-    0.76       5.5 +/-    0.76  0.210 / 0.340
G23     152.2          52.2                7.2 +/-    0.79       8.9 +/-    0.79  0.050 / 0.040
G27     64.8           35.2                5.3 +/-    0.51       8.4 +/-    0.51  0.030 / 0.060
G28     229.2          13.8                7.5 +/-    3.03      19.3 +/-    3.03  0.050 / 0.060
G30     292.9          26.0                7.2 +/-    1.16      13.7 +/-    1.16  0.060 / 0.070