PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/12-01:12:40
G03     196.8          34.5                6.4 +/-    0.50      10.2 +/-    0.50  0.240 / 0.360
G07     277.4          29.9                5.2 +/-    1.08       9.2 +/-    1.08  0.260 / 0.380
G08     150.1          17.1                9.0 +/-    2.81      21.4 +/-    2.81  0.040 / 0.040
G09     319.4          48.8                3.3 +/-    0.58       4.3 +/-    0.58  0.030 / 0.030
G16     52.3           55.8                5.3 +/-    0.49       6.3 +/-    0.49  0.110 / 0.160
G22     181.8          19.1                5.8 +/-    1.75      13.0 +/-    1.75  0.110 / 0.220
G23     10.2           80.2                4.3 +/-    1.00       4.4 +/-    1.00  0.030 / 0.040
G26     43.5           25.3                4.1 +/-    1.90       7.9 +/-    1.90  0.040 / 0.040
G27     113.0          26.7                7.5 +/-    0.87      14.0 +/-    0.87  0.100 / 0.090