PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-17:58:10
G08     302.2          21.4                7.7 +/-    0.99      16.5 +/-    0.99  0.060 / 0.080
G10     347.0          61.9                7.5 +/-    0.64       8.3 +/-    0.64  0.110 / 0.070
G14     223.3          38.7               10.8 +/-    1.84      16.1 +/-    1.84  0.080 / 0.040
G18     53.8           54.4                8.0 +/-    0.95       9.6 +/-    0.95  0.050 / 0.040
G24     65.9           29.4                7.9 +/-    1.10      14.0 +/-    1.10  0.100 / 0.090
G27     262.8          35.3               10.1 +/-    1.26      15.9 +/-    1.26  0.060 / 0.110
G32     232.1          59.1                9.4 +/-    1.83      10.8 +/-    1.83  0.140 / 0.240