PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/17-18:27:40
G10     252.5          28.6               10.0 +/-    2.02      18.0 +/-    2.02  0.040 / 0.060
G13     51.4           28.3                8.2 +/-    1.10      14.9 +/-    1.10  0.030 / 0.050
G15     88.0           59.2               10.1 +/-    0.73      11.5 +/-    0.73  0.160 / 0.640
G16     293.4          15.4                6.9 +/-    5.26      17.1 +/-    5.26  0.160 / 0.680
G20     273.0          52.3               10.6 +/-    0.80      13.0 +/-    0.80  0.060 / 0.180
G21     338.2          62.3                9.7 +/-    0.76      10.9 +/-    0.76  0.080 / 0.170
G26     266.3          14.6                8.7 +/-    1.36      21.8 +/-    1.36  0.030 / 0.050
G29     165.0          47.5               10.1 +/-    1.00      13.2 +/-    1.00  0.040 / 0.050