PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-22:27:50
G01     101.1          28.4               15.1 +/-    1.34      27.4 +/-    1.34  0.100 / 0.140
G07     114.9          54.1               15.3 +/-    0.46      18.4 +/-    0.46  0.080 / 0.130
G08     42.1           19.0               11.8 +/-    1.46      26.7 +/-    1.46  0.060 / 0.160
G11     84.1           43.5               14.4 +/-    0.78      19.9 +/-    0.78  0.060 / 0.120
G13     305.1          31.5               12.7 +/-    1.38      21.5 +/-    1.38  0.020 / 0.050
G17     209.4          40.6               17.1 +/-    1.07      24.7 +/-    1.07  0.020 / 0.050
G18     352.8          -15.4              20.2 +/-    1.03      49.7 +/-    1.03  0.040 / 0.050
G19     210.9          18.0               -1.2 +/-   17.31      -2.7 +/-   17.31  0.050 / 0.070
G28     330.9          61.8               13.7 +/-    1.03      15.4 +/-    1.03  0.070 / 0.170
G30     70.3           78.3               14.6 +/-    0.84      14.9 +/-    0.84  0.060 / 0.190