PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-17:27:40
G08     314.3          16.2                8.0 +/-    1.94      19.4 +/-    1.94  0.050 / 0.080
G10     320.0          57.7                6.7 +/-    0.83       7.8 +/-    0.83  0.060 / 0.080
G14     215.4          25.5                9.4 +/-    3.66      18.2 +/-    3.66  0.030 / 0.060
G15     45.9           14.3                5.4 +/-    0.93      13.6 +/-    0.93  0.050 / 0.050
G18     31.9           60.8                7.8 +/-    0.73       8.8 +/-    0.73  0.030 / 0.040
G20     81.1           11.1                7.8 +/-    2.40      21.3 +/-    2.40  0.030 / 0.040
G24     82.1           30.3                8.5 +/-    0.52      14.9 +/-    0.52  0.110 / 0.470
G27     280.9          38.1                7.6 +/-    0.83      11.4 +/-    0.83  0.100 / 0.490
G32     219.0          45.6                9.7 +/-    1.05      13.0 +/-    1.05  0.060 / 0.110