PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-17:42:50
G01     319.0          19.7                7.6 +/-    1.46      16.8 +/-    1.46  0.070 / 0.050
G08     257.6          14.1                8.4 +/-    1.93      21.4 +/-    1.93  0.040 / 0.050
G10     79.4           51.7                8.8 +/-    0.74      10.9 +/-    0.74  0.180 / 0.300
G11     307.4          19.2                7.0 +/-    2.20      15.8 +/-    2.20  0.190 / 0.340
G14     282.4          67.9                8.5 +/-    0.68       9.0 +/-    0.68  0.140 / 0.280
G20     105.9          26.6                9.8 +/-    1.19      18.4 +/-    1.19  0.160 / 0.240
G31     176.6          39.9               10.5 +/-    0.69      15.3 +/-    0.69  0.040 / 0.040
G32     9.5            67.4                7.4 +/-    0.88       7.9 +/-    0.88  0.030 / 0.040