PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-19:57:50
G01     315.1          25.1                8.2 +/-    3.11      16.1 +/-    3.11  0.150 / 0.350
G10     92.3           48.4                8.4 +/-    0.57      10.9 +/-    0.57  0.140 / 0.210
G11     295.0          26.3                7.4 +/-    1.25      14.1 +/-    1.25  0.030 / 0.030
G14     326.8          70.7                8.6 +/-    0.75       9.1 +/-    0.75  0.030 / 0.030
G18     109.7          21.2                9.9 +/-    2.56      21.1 +/-    2.56  0.050 / 0.040
G22     304.8          16.5                7.6 +/-    4.08      18.2 +/-    4.08  0.040 / 0.050
G25     92.9           12.5                9.5 +/-    1.38      25.1 +/-    1.38  0.040 / 0.060
G31     175.5          50.7               11.1 +/-    1.38      13.8 +/-    1.38  0.060 / 0.040
G32     20.7           61.5                7.4 +/-    0.45       8.3 +/-    0.45  0.110 / 0.160