PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-05:58:10
G10     307.4          54.8                3.9 +/-    1.12       4.7 +/-    1.12  0.100 / 0.530
G14     212.9          13.8                5.5 +/-    3.38      14.2 +/-    3.38  0.150 / 0.460
G15     45.6           22.6                1.9 +/-    0.61       3.9 +/-    0.61  0.030 / 0.060
G20     38.7           57.6                4.4 +/-    0.70       5.2 +/-    0.70  0.040 / 0.040
G21     113.5          70.0                6.5 +/-    0.61       6.9 +/-    0.61  0.060 / 0.070
G24     89.7           28.5                4.7 +/-    0.41       8.5 +/-    0.41  0.060 / 0.080
G27     292.4          36.7                5.2 +/-    1.68       8.0 +/-    1.68  0.030 / 0.040
G32     213.5          40.4                7.7 +/-    0.98      11.1 +/-    0.98  0.030 / 0.040