PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-11:28:00
G01     38.0           11.4                3.1 +/-    2.58       8.5 +/-    2.58  0.060 / 0.160
G02     200.1          10.5               -0.2 +/-    8.39      -0.5 +/-    8.39  0.070 / 0.160
G06     172.0          44.9                7.4 +/-    0.96      10.0 +/-    0.96  0.120 / 0.190
G13     232.3          19.3                7.4 +/-    1.19      16.6 +/-    1.19  0.090 / 0.150
G15     267.0          10.3                4.7 +/-    2.81      12.9 +/-    2.81  0.030 / 0.030
G17     5.9            68.3                6.5 +/-    0.80       6.9 +/-    0.80  0.030 / 0.030
G19     297.2          72.1                6.5 +/-    1.25       6.8 +/-    1.25  0.080 / 0.250
G24     315.0          21.8                1.0 +/-    1.07       2.2 +/-    1.07  0.090 / 0.300
G28     70.6           50.0                5.0 +/-    0.54       6.3 +/-    0.54  0.030 / 0.040
G30     156.3          24.4                6.1 +/-    2.13      12.2 +/-    2.13  0.030 / 0.040