PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/10-01:13:10
G10     279.2          45.6               11.5 +/-    1.34      15.3 +/-    1.34  0.090 / 0.130
G13     38.0           9.4                 7.6 +/-    2.44      21.5 +/-    2.44  0.210 / 0.150
G15     50.7           39.9                8.6 +/-    0.98      12.6 +/-    0.98  0.100 / 0.060
G20     318.2          63.6               10.8 +/-    1.12      11.9 +/-    1.12  0.070 / 0.050
G21     33.9           76.4               10.6 +/-    0.51      10.9 +/-    0.51  0.060 / 0.040
G24     112.4          19.9               19.7 +/-    2.23      43.4 +/-    2.23  0.050 / 0.030
G27     313.7          25.6                7.6 +/-    2.15      14.7 +/-    2.15  0.140 / 0.610
G29     167.5          20.2               10.2 +/-    3.27      22.4 +/-    3.27  0.070 / 0.350
G32     206.2          16.8               12.6 +/-    1.12      30.1 +/-    1.12  0.060 / 0.060