PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-10:42:40
G08     301.9          20.1                6.6 +/-    2.40      14.4 +/-    2.40  0.050 / 0.100
G10     357.6          62.7                4.1 +/-    0.56       4.5 +/-    0.56  0.050 / 0.100
G14     226.4          39.6                7.0 +/-    0.83      10.2 +/-    0.83  0.080 / 0.240
G20     88.8           14.8                4.5 +/-    1.34      11.3 +/-    1.34  0.080 / 0.250
G21     144.0          43.8                9.0 +/-    1.57      12.3 +/-    1.57  0.050 / 0.090
G24     60.3           27.5                4.3 +/-    0.97       7.9 +/-    0.97  0.050 / 0.120
G27     258.1          33.5                6.6 +/-    1.30      10.7 +/-    1.30  0.050 / 0.070
G32     239.5          65.7                7.1 +/-    0.41       7.7 +/-    0.41  0.040 / 0.060