PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-17:58:00
G01     262.0          39.2               10.4 +/-    2.55      15.4 +/-    2.55  0.060 / 0.050
G03     316.6          38.0                6.8 +/-    1.04      10.2 +/-    1.04  0.040 / 0.050
G10     133.4          11.9                9.2 +/-    1.55      24.7 +/-    1.55  0.030 / 0.030
G11     247.0          17.3                9.2 +/-    1.51      21.6 +/-    1.51  0.020 / 0.030
G14     49.8           47.0                7.1 +/-    0.85       9.4 +/-    0.85  0.090 / 0.230
G22     311.8          59.1                8.2 +/-    1.19       9.3 +/-    1.19  0.260 / 0.230
G25     47.0           14.8                5.2 +/-    4.59      13.1 +/-    4.59  0.040 / 0.060
G26     143.2          30.7               10.3 +/-    0.70      17.8 +/-    0.70  0.040 / 0.070
G31     45.3           67.1                8.1 +/-    0.57       8.7 +/-    0.57  0.180 / 0.240
G32     70.2           27.9                6.0 +/-    1.13      11.0 +/-    1.13  0.140 / 0.250