PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/27-19:42:40
G01     320.0          15.6                9.2 +/-    2.26      22.5 +/-    2.26  0.050 / 0.040
G08     257.9          14.7                9.1 +/-    2.12      22.8 +/-    2.12  0.060 / 0.040
G10     75.6           54.2                9.2 +/-    1.08      11.1 +/-    1.08  0.110 / 0.280
G11     304.6          22.6                8.9 +/-    1.66      18.5 +/-    1.66  0.150 / 0.230
G14     288.8          70.3                8.5 +/-    0.54       9.0 +/-    0.54  0.200 / 0.280
G20     102.9          31.0                9.0 +/-    0.81      15.5 +/-    0.81  0.360 / 0.290
G27     228.0          11.2                8.8 +/-    2.92      23.9 +/-    2.92  0.160 / 0.250
G31     178.8          36.6               10.4 +/-    1.69      16.1 +/-    1.69  0.140 / 0.230
G32     0.3            69.8                8.5 +/-    0.36       9.0 +/-    0.36  0.070 / 0.080