PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-12:42:40
G07     344.7          61.9                4.2 +/-    0.41       4.7 +/-    0.41  0.170 / 0.260
G08     98.3           52.6                4.4 +/-    0.48       5.3 +/-    0.48  0.120 / 0.290
G09     191.1          72.5                6.5 +/-    0.40       6.8 +/-    0.40  0.210 / 0.640
G11     144.0          15.4                6.8 +/-    2.84      16.7 +/-    2.84  0.250 / 0.510
G23     155.1          36.5                6.2 +/-    0.74       9.6 +/-    0.74  0.050 / 0.040
G27     54.0           31.2                4.4 +/-    1.47       7.5 +/-    1.47  0.040 / 0.030
G28     237.2          25.9                6.7 +/-    2.58      12.8 +/-    2.58  0.060 / 0.080
G30     305.1          38.8                4.4 +/-    1.76       6.6 +/-    1.76  0.100 / 0.100