PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-01:27:50
G01     266.6          40.3                8.3 +/-    1.33      12.0 +/-    1.33  0.060 / 0.060
G03     316.0          30.4                7.0 +/-    1.33      12.2 +/-    1.33  0.050 / 0.060
G10     131.4          15.3                6.7 +/-    0.56      16.5 +/-    0.56  0.030 / 0.030
G11     246.7          19.4                7.9 +/-    1.19      17.7 +/-    1.19  0.040 / 0.040
G14     48.1           47.3                4.5 +/-    0.31       5.9 +/-    0.31  0.090 / 0.260
G22     313.4          53.5                5.4 +/-    2.00       6.5 +/-    2.00  0.060 / 0.270
G25     48.1           14.8                3.9 +/-    1.74       9.7 +/-    1.74  0.080 / 0.100
G26     150.7          25.3                8.5 +/-    1.42      16.5 +/-    1.42  0.060 / 0.080
G31     52.2           75.8                5.9 +/-    0.81       6.1 +/-    0.81  0.040 / 0.070
G32     65.1           33.1                4.5 +/-    0.79       7.4 +/-    0.79  0.040 / 0.070