PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-00:28:00
G10     254.7          31.4               12.9 +/-    0.88      21.9 +/-    0.88  0.090 / 0.100
G13     49.1           26.1                9.6 +/-    2.10      18.3 +/-    2.10  0.120 / 0.110
G15     76.2           55.7               10.1 +/-    0.79      11.9 +/-    0.79  0.050 / 0.050
G16     292.1          15.0                7.4 +/-    1.88      18.4 +/-    1.88  0.040 / 0.040
G20     276.4          53.4               12.5 +/-    3.64      15.1 +/-    3.64  0.130 / 0.170
G21     339.8          62.9               10.9 +/-    0.52      12.0 +/-    0.52  0.110 / 0.180
G26     264.5          13.6                9.0 +/-    3.25      23.1 +/-    3.25  0.040 / 0.040
G29     164.2          43.8               13.0 +/-    0.95      17.8 +/-    0.95  0.030 / 0.030