PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-12:27:50
G10     300.7          53.2                2.3 +/-    0.78       2.8 +/-    0.78  0.080 / 0.160
G14     210.3          14.1                2.1 +/-    1.81       5.3 +/-    1.81  0.100 / 0.130
G15     45.8           26.3                2.5 +/-    0.47       4.8 +/-    0.47  0.030 / 0.040
G20     357.3          65.2                3.5 +/-    0.74       3.8 +/-    0.74  0.040 / 0.050
G21     108.8          67.5                4.0 +/-    0.55       4.3 +/-    0.55  0.030 / 0.040
G24     92.6           26.7                5.1 +/-    1.03       9.5 +/-    1.03  0.030 / 0.050
G27     301.1          33.3                3.9 +/-    1.06       6.4 +/-    1.06  0.180 / 0.470
G32     211.6          31.1                2.5 +/-    3.05       4.3 +/-    3.05  0.320 / 0.710