PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-07:57:50
G01     117.5          17.5                5.2 +/-    1.86      12.1 +/-    1.86  0.030 / 0.040
G07     82.9           65.3                7.1 +/-    0.40       7.7 +/-    0.40  0.040 / 0.040
G08     45.7           33.5                3.8 +/-    0.39       6.1 +/-    0.39  0.030 / 0.040
G09     176.0          25.5                6.6 +/-    1.07      12.8 +/-    1.07  0.030 / 0.040
G11     109.0          41.2                7.6 +/-    1.58      10.9 +/-    1.58  0.110 / 0.380
G13     317.2          20.6                3.0 +/-    1.67       6.5 +/-    1.67  0.120 / 0.380
G17     201.4          22.6                4.6 +/-    3.57       9.4 +/-    3.57  0.140 / 0.270
G18     93.6           20.8                5.5 +/-    0.83      11.8 +/-    0.83  0.170 / 0.410
G28     282.2          52.2                7.4 +/-    1.19       9.1 +/-    1.19  0.070 / 0.200
G30     341.9          67.3                4.3 +/-    0.76       4.7 +/-    0.76  0.070 / 0.180