PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-02:27:50
G10     274.7107       41.6837          9.4491 +/-  2.0744   13.3788 +/-  2.0744  0.070 / 0.070
G13     39.5736        13.9095          6.8837 +/-  1.4331   17.5777 +/-  1.4331  0.060 / 0.070
G15     54.4663        45.9304          8.2781 +/-  0.8535   11.0100 +/-  0.8535  0.040 / 0.060
G18     313.1937       65.4472          8.1154 +/-  0.6434    8.8292 +/-  0.6434  0.040 / 0.040
G20     60.2635        27.9424          6.8579 +/-  1.5379   12.5472 +/-  1.5379  0.090 / 0.150
G21     23.4612        75.7330         10.2480 +/-  0.5373   10.5396 +/-  0.5373  0.060 / 0.160
G24     115.3146       18.0449         10.4123 +/-  1.3255   24.0360 +/-  1.3255  0.220 / 0.250
G27     313.6330       25.6181          7.2386 +/-  1.1538   13.9457 +/-  1.1538  0.190 / 0.190
G29     168.0193       22.1619          9.3012 +/-  1.2239   19.4238 +/-  1.2239  0.130 / 0.310
G32     205.8240       15.4986         12.5765 +/-  1.6709   30.9051 +/-  1.6709  0.130 / 0.310