PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-12:12:30
G02     206.1          40.3                6.8 +/-    2.70       9.8 +/-    2.70  0.020 / 0.040
G06     138.2          75.9                4.5 +/-    0.68       4.6 +/-    0.68  0.030 / 0.030
G12     310.9          21.7                1.2 +/-    1.85       2.6 +/-    1.85  0.100 / 0.200
G17     40.5           45.6                2.9 +/-    0.89       3.9 +/-    0.89  0.100 / 0.190
G19     17.8           59.8                5.0 +/-    1.17       5.6 +/-    1.17  0.040 / 0.050
G24     290.7          39.8                3.9 +/-    1.27       5.6 +/-    1.27  0.040 / 0.040
G28     105.5          32.9                3.1 +/-    0.67       5.1 +/-    0.67  0.070 / 0.080