PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-23:12:30
G02     217.1          62.2               13.7 +/-    1.16      15.3 +/-    1.16  0.100 / 0.180
G06     58.6           76.3               12.5 +/-    0.62      12.9 +/-    0.62  0.130 / 0.240
G12     317.8          34.4                9.7 +/-    1.57      15.6 +/-    1.57  0.080 / 0.080
G17     58.4           31.0               11.4 +/-    1.78      19.6 +/-    1.78  0.070 / 0.070
G19     40.7           48.1               11.6 +/-    0.38      15.0 +/-    0.38  0.080 / 0.090
G24     262.2          41.3               13.3 +/-    2.57      19.0 +/-    2.57  0.080 / 0.100
G28     122.1          16.7               14.7 +/-    1.14      35.1 +/-    1.14  0.040 / 0.020