PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-17:57:40
G10     252.7          30.2               14.5 +/-    2.46      25.3 +/-    2.46  0.040 / 0.050
G13     50.9           27.3                9.3 +/-    3.10      17.2 +/-    3.10  0.040 / 0.050
G15     80.1           56.4               14.4 +/-    0.55      16.9 +/-    0.55  0.140 / 0.350
G16     292.7          15.8               12.1 +/-    3.51      29.5 +/-    3.51  0.130 / 0.400
G20     275.1          53.7               14.6 +/-    3.21      17.7 +/-    3.21  0.120 / 0.180
G21     336.7          61.2               13.7 +/-    0.76      15.4 +/-    0.76  0.110 / 0.150
G26     265.9          14.6               11.7 +/-    3.08      29.5 +/-    3.08  0.130 / 0.110
G29     164.5          48.4               16.6 +/-    0.76      21.3 +/-    0.76  0.110 / 0.160