PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-05:57:50
G01     316.8541       22.1485          0.2076 +/-  2.6701    0.4337 +/-  2.6701  0.030 / 0.010
G08     251.5466       10.6023         -2.5019 +/- 18.1514   -6.8898 +/- 18.1514  0.030 / 0.010
G10     86.0749        51.4837          1.7752 +/-  0.6874    2.1993 +/-  0.6874  0.160 / 0.390
G11     296.2340       27.2740          0.5618 +/-  2.7488    1.0431 +/-  2.7488  0.150 / 0.530
G14     318.4914       71.5339          3.1378 +/-  0.9767    3.2896 +/-  0.9767  0.120 / 0.360
G18     104.9743       27.6142        -27.7019 +/- 63.4787  -51.0472 +/- 63.4787  0.120 / 0.440
G22     303.0935       15.2820          1.0595 +/-  1.3170    2.6174 +/-  1.3170  0.030 / 0.010
G25     92.8255        10.5298         -7.6616 +/- 30.5451  -21.1322 +/- 30.5451  0.030 / 0.010
G31     174.4389       47.7144          4.2176 +/-  2.9561    5.4759 +/-  2.9561  0.090 / 0.090
G32     14.8727        64.2682          3.1312 +/-  3.2331    3.4357 +/-  3.2331  0.080 / 0.060