PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-06:58:00
G01     234.4          25.9                6.8 +/-    1.62      13.0 +/-    1.62  0.120 / 0.200
G03     308.2          59.2                4.7 +/-    0.93       5.3 +/-    0.93  0.160 / 0.160
G14     74.5           32.3                3.8 +/-    1.79       6.4 +/-    1.79  0.030 / 0.030
G16     154.9          32.3                6.1 +/-    1.73      10.2 +/-    1.73  0.040 / 0.030
G18     209.7          15.2                5.1 +/-    1.22      12.6 +/-    1.22  0.040 / 0.040
G22     262.3          75.3                6.9 +/-    0.42       7.2 +/-    0.42  0.040 / 0.050
G23     300.4          32.9                4.5 +/-    1.36       7.5 +/-    1.36  0.090 / 0.110
G26     118.8          49.2                6.1 +/-    0.29       7.8 +/-    0.29  0.090 / 0.140
G31     42.2           41.9                2.7 +/-    0.78       3.8 +/-    0.78  0.110 / 0.270
G32     88.9           14.7                3.5 +/-    3.17       8.9 +/-    3.17  0.200 / 0.330