PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-08:58:10
G10     268.2          38.6                5.3 +/-    2.06       7.9 +/-    2.06  0.290 / 0.460
G13     41.6           17.9                3.5 +/-    2.51       8.1 +/-    2.51  0.220 / 0.430
G15     57.2           46.8                3.9 +/-    0.72       5.2 +/-    0.72  0.040 / 0.030
G16     278.2          11.5                6.4 +/-    1.23      17.2 +/-    1.23  0.040 / 0.040
G20     43.3           50.0                4.1 +/-    1.27       5.1 +/-    1.27  0.120 / 0.220
G21     8.3            72.9                4.2 +/-    1.03       4.4 +/-    1.03  0.230 / 0.300
G24     119.7          14.8                5.4 +/-    1.75      13.6 +/-    1.75  0.150 / 0.260
G27     317.7          20.4                3.1 +/-    1.95       6.8 +/-    1.95  0.160 / 0.210
G29     167.9          29.5                6.6 +/-    1.80      11.7 +/-    1.80  0.110 / 0.070
G32     204.3          11.3               -9.5 +/-   28.80     -25.8 +/-   28.80  0.080 / 0.080