PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-23:43:10
G02     291.2          81.7               11.6 +/-    0.64      11.7 +/-    0.64  0.030 / 0.030
G05     167.1          25.5               19.1 +/-    1.06      36.9 +/-    1.06  0.030 / 0.040
G06     40.2           48.3               10.4 +/-    1.03      13.4 +/-    1.03  0.110 / 0.140
G12     319.9          62.3               11.0 +/-    0.92      12.2 +/-    0.92  0.120 / 0.100
G17     77.4           19.4               11.5 +/-    2.52      25.7 +/-    2.52  0.080 / 0.150
G19     65.5           34.1               11.6 +/-    2.21      18.7 +/-    2.21  0.070 / 0.160
G24     235.8          29.0               16.8 +/-    1.11      30.0 +/-    1.11  0.180 / 0.220
G25     317.8          19.8                9.6 +/-    1.78      21.2 +/-    1.78  0.140 / 0.190