PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-05:12:50
G08     270.0873       19.9752          2.7337 +/-  2.9332    6.0187 +/-  2.9332  0.030 / 0.010
G10     50.3022        60.8406          1.8280 +/-  0.6486    2.0609 +/-  0.6486  0.030 / 0.010
G11     312.7411       16.5215          4.0176 +/-  2.9216    9.6285 +/-  2.9216  0.090 / 0.250
G14     259.4498       64.9167          2.5523 +/-  0.6544    2.7873 +/-  0.6544  0.130 / 0.280
G18     85.8165        41.0863          2.7821 +/-  0.6183    3.9764 +/-  0.6183  0.110 / 0.100
G21     153.3760       20.0709          4.7495 +/-  1.8557   10.4324 +/-  1.8557  0.120 / 0.120
G24     42.3693        14.7414          2.4373 +/-  2.3514    6.1004 +/-  2.3514  0.030 / 0.010
G27     233.9338       18.5531          5.7084 +/-  1.1297   13.0137 +/-  1.1297  0.030 / 0.010
G31     178.9429       25.8648          4.8769 +/-  1.1122    9.3434 +/-  1.1122  0.090 / 0.230
G32     318.2730       75.6306          1.4666 +/-  0.4893    1.5089 +/-  0.4893  0.140 / 0.210