PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-05:28:00
G10     256.1          30.9                4.1 +/-   11.43       7.1 +/-   11.43  0.120 / 0.390
G13     48.5           26.3               13.1 +/-   33.00      24.8 +/-   33.00  0.120 / 0.570
G15     74.2           55.3               18.4 +/-   32.27      21.9 +/-   32.27  0.120 / 0.340
G16     288.8          14.9                9.0 +/-   33.22      22.4 +/-   33.22  0.070 / 0.140
G20     325.0          70.2               19.2 +/-   32.22      20.3 +/-   32.22  0.070 / 0.120
G21     341.7          64.4               17.2 +/-   32.34      18.9 +/-   32.34  0.040 / 0.050
G26     260.7          12.9               11.7 +/-   33.28      30.7 +/-   33.28  0.040 / 0.260
G27     322.1          10.5              -14.3 +/-   17.62     -39.5 +/-   17.62  0.050 / 0.040
G29     166.6          43.4               18.2 +/-   31.68      25.2 +/-   31.68  0.060 / 0.220