PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/05-20:12:40
G01     319.2          17.3               12.2 +/-    1.71      28.6 +/-    1.71  0.040 / 0.060
G08     258.0          13.5               16.2 +/-    4.39      41.7 +/-    4.39  0.050 / 0.060
G10     77.9           54.3               11.9 +/-    1.19      14.3 +/-    1.19  0.040 / 0.020
G11     304.1          22.6               12.8 +/-    2.05      26.4 +/-    2.05  0.030 / 0.020
G14     295.7          70.6               12.3 +/-    0.51      13.0 +/-    0.51  0.140 / 0.260
G18     101.8          28.2               13.3 +/-    0.95      24.1 +/-    0.95  0.200 / 0.170
G31     178.2          39.3               16.8 +/-    0.80      24.7 +/-    0.80  0.070 / 0.040
G32     2.7            68.6               12.8 +/-    0.37      13.6 +/-    0.37  0.060 / 0.040