PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-05:12:50
G01     108.6          24.7                5.6 +/-    1.36      10.9 +/-    1.36  0.030 / 0.040
G07     104.5          58.8                6.3 +/-    0.78       7.2 +/-    0.78  0.040 / 0.040
G08     42.1           21.4                2.9 +/-    2.43       6.2 +/-    2.43  0.050 / 0.090
G09     175.5          15.5                4.7 +/-    0.97      11.6 +/-    0.97  0.060 / 0.060
G11     91.9           42.2                5.4 +/-    1.31       7.5 +/-    1.31  0.150 / 0.240
G13     311.7          26.4                2.9 +/-    1.73       5.6 +/-    1.73  0.120 / 0.310
G17     205.0          37.3                5.5 +/-    0.95       8.4 +/-    0.95  0.190 / 0.280
G19     208.5          12.6                3.0 +/-    4.15       8.0 +/-    4.15  0.150 / 0.320
G28     316.2          60.9                2.8 +/-    0.76       3.2 +/-    0.76  0.040 / 0.040
G30     23.9           77.3                4.9 +/-    0.65       5.0 +/-    0.65  0.050 / 0.030