PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-14:58:10
G01     42.2           18.0                6.5 +/-    3.21      15.1 +/-    3.21  0.030 / 0.060
G06     174.7          35.5               10.9 +/-    0.71      17.2 +/-    0.71  0.040 / 0.060
G13     239.3          24.8               10.8 +/-    2.96      21.1 +/-    2.96  0.250 / 0.330
G15     274.0          13.2                9.2 +/-    1.34      23.9 +/-    1.34  0.180 / 0.300
G17     341.6          74.7                9.6 +/-    0.47      10.0 +/-    0.47  0.030 / 0.030
G19     269.1          68.7                9.1 +/-    0.93       9.7 +/-    0.93  0.030 / 0.030
G24     317.5          15.8                5.7 +/-    3.01      13.9 +/-    3.01  0.030 / 0.040
G28     59.8           52.9                9.2 +/-    1.22      11.2 +/-    1.22  0.040 / 0.040
G30     153.4          30.3                9.6 +/-    1.08      16.7 +/-    1.08  0.070 / 0.090