PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-08:58:00
G02     211.3          55.7               11.0 +/-    1.22      13.0 +/-    1.22  0.040 / 0.040
G06     78.2           77.9                5.5 +/-    0.66       5.6 +/-    0.66  0.040 / 0.050
G12     317.0          34.2                3.5 +/-    1.25       5.6 +/-    1.25  0.060 / 0.090
G17     52.1           35.8                3.0 +/-    0.82       4.7 +/-    0.82  0.050 / 0.080
G19     34.3           51.4                3.4 +/-    0.77       4.2 +/-    0.77  0.040 / 0.050
G24     275.1          41.6                7.7 +/-    1.18      11.0 +/-    1.18  0.030 / 0.050
G28     115.5          25.6                8.1 +/-    1.49      15.6 +/-    1.49  0.080 / 0.200