PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-22:42:50
G02     214.9          59.6               12.6 +/-    0.85      14.3 +/-    0.85  0.050 / 0.050
G06     66.7           77.9               10.4 +/-    0.91      10.6 +/-    0.91  0.050 / 0.060
G12     317.0          32.2                9.9 +/-    1.04      16.6 +/-    1.04  0.160 / 0.270
G17     56.2           32.7                9.7 +/-    0.51      16.0 +/-    0.51  0.110 / 0.300
G19     38.0           49.6                9.9 +/-    0.45      12.6 +/-    0.45  0.060 / 0.080
G24     265.7          41.9               11.2 +/-    1.41      15.9 +/-    1.41  0.050 / 0.080
G28     120.3          18.7               14.8 +/-    2.21      33.6 +/-    2.21  0.040 / 0.050