PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-07:12:30
G10     288.5          48.5                4.7 +/-    1.02       6.1 +/-    1.02  0.080 / 0.100
G15     47.4           33.3                2.4 +/-    0.36       4.0 +/-    0.36  0.060 / 0.090
G20     40.6           54.7                3.6 +/-    0.38       4.3 +/-    0.38  0.040 / 0.060
G21     71.9           76.9                5.8 +/-    0.52       5.9 +/-    0.52  0.040 / 0.050
G24     103.9          23.9                5.5 +/-    1.28      10.9 +/-    1.28  0.040 / 0.050
G27     306.1          31.5                4.9 +/-    1.04       8.3 +/-    1.04  0.040 / 0.050
G29     168.7          13.5                6.6 +/-    4.56      17.1 +/-    4.56  0.100 / 0.180
G32     208.0          27.6                5.1 +/-    2.56       9.5 +/-    2.56  0.080 / 0.180