PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-16:58:00
G07     59.3           67.0               12.6 +/-    1.15      13.5 +/-    1.15  0.170 / 0.200
G08     53.3           42.1               12.3 +/-    1.50      17.3 +/-    1.50  0.160 / 0.180
G09     179.4          41.2               12.3 +/-    0.69      17.5 +/-    0.69  0.030 / 0.030
G11     120.7          34.1               14.0 +/-    0.88      22.6 +/-    0.88  0.040 / 0.030
G17     199.2          11.4                1.0 +/-   23.20       2.8 +/-   23.20  0.030 / 0.040
G18     105.0          15.0               12.2 +/-    2.04      30.4 +/-    2.04  0.040 / 0.030
G23     160.3          10.3                8.4 +/-    3.34      23.4 +/-    3.34  0.130 / 0.440
G27     38.0           11.2               10.1 +/-    1.93      27.3 +/-    1.93  0.110 / 0.310
G28     266.3          47.1               13.3 +/-    4.38      17.5 +/-    4.38  0.250 / 0.300
G30     331.9          59.9               11.1 +/-    0.66      12.6 +/-    0.66  0.310 / 0.380