PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-03:43:10
G01     71.9           31.9                5.7 +/-    1.19       9.5 +/-    1.19  0.040 / 0.030
G07     135.0          34.5                9.2 +/-    1.16      14.7 +/-    1.16  0.030 / 0.030
G11     58.3           37.3                5.6 +/-    1.17       8.6 +/-    1.17  0.120 / 0.210
G13     277.0          39.2                7.8 +/-    1.24      11.5 +/-    1.24  0.080 / 0.200
G15     302.3          16.2                3.8 +/-    1.23       9.3 +/-    1.23  0.090 / 0.090
G17     226.1          67.3                9.7 +/-    0.74      10.4 +/-    0.74  0.090 / 0.070
G19     220.6          41.5                9.6 +/-    1.45      13.6 +/-    1.45  0.050 / 0.050
G28     354.5          61.5                6.0 +/-    0.58       6.8 +/-    0.58  0.040 / 0.050
G30     131.8          69.7                9.1 +/-    0.78       9.7 +/-    0.78  0.050 / 0.070