PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-21:12:30
G08     300.4          22.2                9.8 +/-    1.28      20.5 +/-    1.28  0.060 / 0.090
G10     348.4          62.0                9.8 +/-    0.57      10.9 +/-    0.57  0.060 / 0.110
G14     223.8          40.3               11.8 +/-    1.54      17.0 +/-    1.54  0.070 / 0.080
G18     53.6           54.7               11.1 +/-    0.47      13.3 +/-    0.47  0.040 / 0.090
G21     141.1          45.1               12.3 +/-    1.13      16.5 +/-    1.13  0.050 / 0.070
G24     65.3           29.3               10.6 +/-    0.65      18.9 +/-    0.65  0.060 / 0.090
G27     261.7          35.0               12.2 +/-    1.40      19.3 +/-    1.40  0.030 / 0.040
G32     232.7          58.2               13.5 +/-    0.67      15.6 +/-    0.67  0.030 / 0.040