PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/27-14:12:40
G10     268.5          39.6                7.8 +/-    1.05      11.4 +/-    1.05  0.030 / 0.040
G13     41.2           16.9                3.5 +/-    0.72       8.2 +/-    0.72  0.030 / 0.040
G15     58.4           48.6                5.1 +/-    0.73       6.6 +/-    0.73  0.060 / 0.070
G16     280.0          11.6                5.4 +/-    1.92      14.6 +/-    1.92  0.060 / 0.080
G20     300.3          60.9                5.3 +/-    0.78       5.9 +/-    0.78  0.100 / 0.210
G21     19.6           73.6                5.3 +/-    0.68       5.5 +/-    0.68  0.120 / 0.190
G24     115.6          15.3                8.8 +/-    1.81      21.8 +/-    1.81  0.100 / 0.240
G27     319.3          17.5                3.5 +/-    1.70       8.2 +/-    1.70  0.150 / 0.280
G29     166.7          28.1                9.6 +/-    0.72      17.4 +/-    0.72  0.100 / 0.140