PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-01:58:10
G01     47.4           23.5                2.4 +/-    1.52       4.9 +/-    1.52  0.030 / 0.040
G06     179.9          24.4                5.5 +/-    1.73      10.9 +/-    1.73  0.040 / 0.050
G11     43.6           11.2                2.1 +/-    2.19       5.7 +/-    2.19  0.100 / 0.180
G13     246.6          29.0                4.0 +/-    1.31       7.1 +/-    1.31  0.130 / 0.150
G15     280.6          15.1               -0.0 +/-    4.18      -0.1 +/-    4.18  0.390 / 0.210
G17     340.9          77.0                3.9 +/-    0.61       4.0 +/-    0.61  0.130 / 0.210
G19     250.7          61.5                5.0 +/-    0.41       5.6 +/-    0.41  0.060 / 0.120
G24     318.1          13.0                2.6 +/-    1.16       6.7 +/-    1.16  0.070 / 0.170
G28     52.9           53.7                4.9 +/-    0.71       5.9 +/-    0.71  0.050 / 0.040
G30     151.2          38.7                6.0 +/-    0.42       8.9 +/-    0.42  0.060 / 0.040