PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-14:27:50
G01     117.9          17.8                8.8 +/-    2.42      20.5 +/-    2.42  0.060 / 0.100
G07     88.6           62.4               12.3 +/-    0.59      13.7 +/-    0.59  0.060 / 0.080
G08     45.3           32.7                9.0 +/-    1.20      15.0 +/-    1.20  0.050 / 0.080
G09     177.5          26.9                9.6 +/-    1.26      17.9 +/-    1.26  0.050 / 0.070
G11     105.7          40.9               11.2 +/-    0.41      16.1 +/-    0.41  0.040 / 0.030
G13     317.1          20.7                9.0 +/-    3.08      19.5 +/-    3.08  0.030 / 0.040
G17     201.7          23.0               10.4 +/-    2.22      21.2 +/-    2.22  0.120 / 0.210
G18     92.5           20.9                9.3 +/-    1.86      19.9 +/-    1.86  0.080 / 0.170
G28     285.2          53.8               10.8 +/-    2.48      13.0 +/-    2.48  0.290 / 0.160
G30     353.2          70.9               10.3 +/-    0.59      10.8 +/-    0.59  0.260 / 0.250