PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-09:57:30
G01     222.4          14.2                4.9 +/-    3.10      12.4 +/-    3.10  0.040 / 0.040
G03     270.0          71.3                4.8 +/-    0.66       5.1 +/-    0.66  0.040 / 0.040
G14     89.8           21.7                2.4 +/-    1.42       5.1 +/-    1.42  0.050 / 0.040
G16     144.1          47.9                6.5 +/-    1.48       8.5 +/-    1.48  0.040 / 0.040
G22     205.2          66.1                4.6 +/-    0.39       5.0 +/-    0.39  0.170 / 0.270
G23     312.0          42.5                4.7 +/-    0.94       6.6 +/-    0.94  0.170 / 0.330
G26     91.3           54.8                5.1 +/-    0.78       6.1 +/-    0.78  0.120 / 0.220
G31     47.3           27.9                0.9 +/-    2.02       1.7 +/-    2.02  0.110 / 0.300