PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/20-05:27:50
G01     320.4574       12.5568          3.4384 +/- 13.1921    9.0639 +/- 13.1921  0.030 / 0.010
G08     261.7996       16.4510          7.4651 +/-  1.7774   17.9218 +/-  1.7774  0.030 / 0.020
G10     67.0062        57.5989          2.4229 +/-  0.4126    2.8128 +/-  0.4126  0.150 / 0.180
G11     306.8072       21.8530          2.7541 +/-  1.6302    5.7941 +/-  1.6302  0.130 / 0.200
G14     280.7807       69.6232          4.9776 +/-  0.9423    5.2731 +/-  0.9423  0.170 / 0.100
G18     94.5323        35.5495          3.5401 +/-  5.0900    5.5615 +/-  5.0900  0.170 / 0.110
G21     154.8384       11.7448          2.9654 +/-  2.9310    7.9633 +/-  2.9310  0.150 / 0.210
G27     227.4964       12.7463          5.6137 +/-  3.8390   14.7331 +/-  3.8390  0.120 / 0.210
G31     177.2450       34.8280          6.9706 +/-  1.3860   11.0977 +/-  1.3860  0.080 / 0.310
G32     349.3611       72.1242         -1.1510 +/- 27.1891   -1.2031 +/- 27.1891  0.130 / 0.380