PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/24-17:57:50
G10     252.0          28.3               10.9 +/-    1.69      19.7 +/-    1.69  0.040 / 0.050
G13     51.9           28.6                8.9 +/-    1.85      16.1 +/-    1.85  0.040 / 0.040
G15     88.7           59.1                8.5 +/-    1.13       9.7 +/-    1.13  0.150 / 0.620
G16     294.1          15.4                6.8 +/-    4.12      16.8 +/-    4.12  0.150 / 0.640
G20     272.1          51.9                9.3 +/-    0.88      11.4 +/-    0.88  0.100 / 0.170
G21     337.8          62.1                8.2 +/-    1.26       9.2 +/-    1.26  0.060 / 0.150
G26     267.1          14.8               10.3 +/-    2.36      25.8 +/-    2.36  0.030 / 0.040
G29     164.7          48.0                9.6 +/-    1.20      12.4 +/-    1.20  0.030 / 0.040