PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-02:57:50
G01     274.1          41.2                5.8 +/-    0.93       8.2 +/-    0.93  0.060 / 0.100
G03     315.0          25.1                5.1 +/-    1.83      10.0 +/-    1.83  0.050 / 0.070
G10     128.1          19.9                5.6 +/-    0.79      12.3 +/-    0.79  0.040 / 0.070
G11     251.1          22.2                6.1 +/-    3.81      12.7 +/-    3.81  0.040 / 0.060
G14     42.0           50.4                2.2 +/-    0.36       2.8 +/-    0.36  0.050 / 0.070
G22     314.4          48.6                4.1 +/-    0.85       5.3 +/-    0.85  0.050 / 0.080
G25     52.3           16.1                3.8 +/-    1.02       9.1 +/-    1.02  0.030 / 0.030
G26     152.7          21.2                6.6 +/-    1.95      14.2 +/-    1.95  0.030 / 0.030
G31     67.9           79.0                3.9 +/-    0.57       4.0 +/-    0.57  0.120 / 0.330
G32     60.0           36.7                2.3 +/-    0.95       3.5 +/-    0.95  0.100 / 0.290