PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-23:43:00
G02     205.0          41.8               13.3 +/-    1.61      18.8 +/-    1.61  0.050 / 0.060
G06     158.7          73.1               12.4 +/-    0.36      12.9 +/-    0.36  0.060 / 0.080
G12     309.6          17.6               10.3 +/-    2.54      24.0 +/-    2.54  0.060 / 0.120
G17     42.2           43.8               10.9 +/-    1.56      14.9 +/-    1.56  0.070 / 0.110
G19     13.0           61.5               11.5 +/-    0.57      12.9 +/-    0.57  0.050 / 0.040
G24     289.0          41.4               15.0 +/-    3.06      21.3 +/-    3.06  0.060 / 0.040
G28     106.2          30.7               13.8 +/-    1.07      23.8 +/-    1.07  0.300 / 0.160