PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-17:12:40
G08     317.3          14.3                7.8 +/-    2.55      19.6 +/-    2.55  0.060 / 0.080
G10     317.4          57.7               23.7 +/-    0.99      27.4 +/-    0.99  0.060 / 0.080
G14     213.7          17.0               12.2 +/-    2.12      29.0 +/-    2.12  0.160 / 0.290
G15     45.6           16.0                6.7 +/-    1.65      16.2 +/-    1.65  0.160 / 0.210
G20     23.7           62.4                8.8 +/-    2.11       9.8 +/-    2.11  0.130 / 0.310
G21     121.6          65.8               10.0 +/-    0.36      10.8 +/-    0.36  0.170 / 0.310
G24     87.3           29.9                8.2 +/-    1.37      14.4 +/-    1.37  0.030 / 0.040
G27     287.9          37.8                9.5 +/-    1.88      14.3 +/-    1.88  0.040 / 0.040
G32     215.1          44.1               10.0 +/-    0.97      13.7 +/-    0.97  0.040 / 0.040