PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-09:13:10
G01     83.0           32.0                6.0 +/-    0.56      10.2 +/-    0.56  0.020 / 0.030
G07     129.2          40.0                7.2 +/-    0.85      10.4 +/-    0.85  0.030 / 0.030
G11     64.5           39.8                5.0 +/-    0.68       7.3 +/-    0.68  0.030 / 0.080
G13     288.1          38.4                4.3 +/-    1.31       6.4 +/-    1.31  0.040 / 0.070
G15     312.2          11.7                2.5 +/-    1.90       6.8 +/-    1.90  0.050 / 0.120
G17     217.0          56.1                6.7 +/-    0.76       7.9 +/-    0.76  0.050 / 0.140
G18     58.5           22.6                3.5 +/-    0.97       7.2 +/-    0.97  0.070 / 0.210
G19     215.7          33.2                7.0 +/-    1.36      11.6 +/-    1.36  0.060 / 0.160
G28     341.7          61.4                5.3 +/-    0.83       6.0 +/-    0.83  0.060 / 0.120
G30     115.7          74.7                8.4 +/-    0.44       8.7 +/-    0.44  0.060 / 0.110