PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-10:27:30
G08     312.8          16.2                3.7 +/-    2.03       8.9 +/-    2.03  0.230 / 0.210
G10     332.1          60.0                2.9 +/-    0.49       3.3 +/-    0.49  0.130 / 0.160
G14     218.7          28.4                4.6 +/-    2.71       8.3 +/-    2.71  0.050 / 0.070
G20     79.9           21.0                3.1 +/-    1.20       6.6 +/-    1.20  0.050 / 0.060
G21     134.6          55.9                4.7 +/-    0.38       5.6 +/-    0.38  0.060 / 0.060
G24     73.8           30.1                5.5 +/-    0.62       9.6 +/-    0.62  0.050 / 0.060
G27     273.4          37.4                5.0 +/-    1.88       7.6 +/-    1.88  0.030 / 0.040
G32     223.8          54.1                5.6 +/-    2.11       6.8 +/-    2.11  0.030 / 0.040