PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-09:28:10
G01     99.7           28.9                4.6 +/-    1.14       8.3 +/-    1.14  0.030 / 0.040
G07     117.1          51.7                6.5 +/-    1.05       8.0 +/-    1.05  0.030 / 0.030
G08     41.5           12.4                2.0 +/-    1.48       5.4 +/-    1.48  0.070 / 0.140
G11     77.4           41.7                5.6 +/-    0.57       7.9 +/-    0.57  0.060 / 0.130
G13     303.1          33.0                2.5 +/-    2.03       4.2 +/-    2.03  0.030 / 0.050
G17     208.5          47.0                5.8 +/-    1.51       7.6 +/-    1.51  0.030 / 0.050
G18     70.9           24.2                3.6 +/-    0.79       7.2 +/-    0.79  0.080 / 0.160
G19     211.7          15.6                4.9 +/-    2.41      12.0 +/-    2.41  0.080 / 0.150
G28     330.0          61.6                4.0 +/-    0.43       4.5 +/-    0.43  0.080 / 0.150
G30     53.4           80.5                4.4 +/-    0.40       4.4 +/-    0.40  0.050 / 0.150