PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-07:13:10
G08     288.0          23.0                5.4 +/-    1.02      11.0 +/-    1.02  0.080 / 0.110
G10     22.6           62.5                3.0 +/-    0.36       3.4 +/-    0.36  0.090 / 0.120
G14     234.9          51.9                8.0 +/-    1.94       9.8 +/-    1.94  0.060 / 0.110
G18     317.7          16.1                2.0 +/-    2.05       4.7 +/-    2.05  0.060 / 0.100
G20     73.2           49.0                4.2 +/-    0.71       5.3 +/-    0.71  0.050 / 0.040
G21     149.2          34.0                7.4 +/-    1.57      12.0 +/-    1.57  0.050 / 0.030
G24     50.9           22.3                2.7 +/-    1.39       5.6 +/-    1.39  0.050 / 0.080
G27     250.0          29.0                8.0 +/-    1.72      14.4 +/-    1.72  0.050 / 0.100
G31     182.6          11.3               -0.0 +/-   19.39      -0.1 +/-   19.39  0.090 / 0.150
G32     253.5          68.3                5.7 +/-    0.45       6.0 +/-    0.45  0.090 / 0.180