PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/19-23:27:50
G01     128.3          10.7               -9.6 +/-   44.27     -26.4 +/-   44.27  0.110 / 0.270
G07     46.8           69.7               11.2 +/-    0.68      11.9 +/-    0.68  0.070 / 0.290
G08     53.1           42.9                9.0 +/-    0.91      12.5 +/-    0.91  0.030 / 0.050
G09     179.3          38.8               12.7 +/-    1.83      18.9 +/-    1.83  0.040 / 0.050
G11     123.3          33.6               12.8 +/-    1.01      20.8 +/-    1.01  0.040 / 0.070
G17     200.4          12.0               15.3 +/-    5.02      40.8 +/-    5.02  0.040 / 0.060
G28     274.6          52.5               10.6 +/-    0.82      13.0 +/-    0.82  0.190 / 0.290
G30     337.5          62.5                9.2 +/-    0.59      10.2 +/-    0.59  0.170 / 0.310