PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-07:12:30
G07     6.7            66.7                5.3 +/-    1.03       5.7 +/-    1.03  0.030 / 0.040
G08     74.4           52.1                5.2 +/-    0.80       6.4 +/-    0.80  0.030 / 0.040
G09     179.2          55.2                7.6 +/-    0.85       9.0 +/-    0.85  0.190 / 0.140
G11     136.2          24.4                8.0 +/-    2.27      15.9 +/-    2.27  0.210 / 0.200
G23     158.9          24.0                6.6 +/-    1.98      13.1 +/-    1.98  0.040 / 0.040
G27     43.4           21.7                4.1 +/-    2.08       8.6 +/-    2.08  0.040 / 0.030
G28     248.3          34.9                6.8 +/-    1.75      10.9 +/-    1.75  0.040 / 0.040
G30     313.7          45.0                4.4 +/-    0.78       5.9 +/-    0.78  0.040 / 0.050