PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-23:58:10
G03     235.3          67.1                8.7 +/-    0.70       9.4 +/-    0.70  0.050 / 0.040
G09     304.3          19.0                6.2 +/-    1.76      14.0 +/-    1.76  0.040 / 0.040
G14     101.3          13.0                6.4 +/-    2.54      16.7 +/-    2.54  0.180 / 0.200
G16     132.2          59.6                9.0 +/-    0.75      10.3 +/-    0.75  0.220 / 0.190
G22     194.9          54.5               10.6 +/-    0.94      12.7 +/-    0.94  0.030 / 0.040
G23     319.9          49.6                7.7 +/-    0.65       9.8 +/-    0.65  0.030 / 0.040
G26     69.2           52.6                5.9 +/-    0.43       7.2 +/-    0.43  0.130 / 0.320
G31     52.3           20.3                5.4 +/-    3.69      11.7 +/-    3.69  0.100 / 0.270