PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/15-20:58:30
G01     286.7          40.8                9.0 +/-    1.33      12.9 +/-    1.33  0.060 / 0.110
G03     313.0          19.6                8.6 +/-    1.59      19.2 +/-    1.59  0.060 / 0.090
G10     122.1          26.8               10.0 +/-    0.91      18.8 +/-    0.91  0.040 / 0.070
G11     262.5          25.3               12.3 +/-    2.08      23.8 +/-    2.08  0.040 / 0.080
G14     29.0           56.8                6.9 +/-    1.36       8.1 +/-    1.36  0.050 / 0.050
G22     314.1          40.6                6.8 +/-    2.57       9.9 +/-    2.57  0.040 / 0.040
G25     63.3           18.7                8.2 +/-    0.68      18.5 +/-    0.68  0.030 / 0.050
G26     156.3          14.8               12.3 +/-    2.43      30.8 +/-    2.43  0.040 / 0.060
G31     121.5          80.5               11.9 +/-    1.00      12.1 +/-    1.00  0.050 / 0.110
G32     53.3           40.7                8.4 +/-    0.31      12.1 +/-    0.31  0.060 / 0.130