PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-10:42:30
G08     301.9          20.1                3.5 +/-    1.99       7.7 +/-    1.99  0.120 / 0.110
G10     357.6          62.7                4.0 +/-    0.81       4.5 +/-    0.81  0.070 / 0.110
G14     226.4          39.6                7.0 +/-    1.80      10.2 +/-    1.80  0.060 / 0.090
G20     88.8           14.8                6.1 +/-    1.76      15.2 +/-    1.76  0.060 / 0.090
G21     144.0          43.8                8.2 +/-    0.48      11.2 +/-    0.48  0.070 / 0.090
G24     60.3           27.5                4.5 +/-    0.97       8.3 +/-    0.97  0.080 / 0.100
G27     258.1          33.5                7.4 +/-    2.25      12.1 +/-    2.25  0.050 / 0.060
G32     239.5          65.7                7.0 +/-    0.72       7.6 +/-    0.72  0.050 / 0.060