PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-06:13:00
G01     58.6           29.3                2.2 +/-    1.77       3.9 +/-    1.77  0.040 / 0.040
G06     179.2          14.6                4.9 +/-    1.61      12.4 +/-    1.61  0.040 / 0.030
G07     141.6          22.7                8.1 +/-    2.46      16.8 +/-    2.46  0.110 / 0.210
G11     49.5           27.6                2.2 +/-    1.20       4.0 +/-    1.20  0.110 / 0.230
G13     261.5          36.5                7.2 +/-    2.29      11.1 +/-    2.29  0.040 / 0.050
G15     292.0          17.1                5.7 +/-    1.34      13.5 +/-    1.34  0.050 / 0.050
G17     255.3          76.7                7.4 +/-    0.56       7.6 +/-    0.56  0.020 / 0.030
G19     231.3          52.7                6.8 +/-    2.23       8.3 +/-    2.23  0.030 / 0.020
G28     19.4           60.4                2.0 +/-    1.00       2.2 +/-    1.00  0.090 / 0.220
G30     144.4          56.7                7.4 +/-    1.04       8.6 +/-    1.04  0.090 / 0.180