PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-05:12:40
G01     37.9           11.5                3.5 +/-    3.34       9.5 +/-    3.34  0.070 / 0.140
G02     198.3          13.3                5.1 +/-    4.98      13.1 +/-    4.98  0.070 / 0.140
G06     173.0          42.8               10.1 +/-    0.81      14.1 +/-    0.81  0.080 / 0.220
G13     232.9          20.2                8.2 +/-    1.88      18.0 +/-    1.88  0.110 / 0.170
G15     264.1          11.0                4.7 +/-    1.20      12.7 +/-    1.20  0.030 / 0.030
G17     11.0           67.0                6.7 +/-    0.42       7.2 +/-    0.42  0.030 / 0.030
G19     294.1          72.2                7.1 +/-    0.42       7.4 +/-    0.42  0.040 / 0.050
G24     315.4          20.9                1.9 +/-    3.35       4.1 +/-    3.35  0.040 / 0.060
G28     67.0           51.9                6.7 +/-    1.35       8.2 +/-    1.35  0.280 / 0.510
G30     156.9          27.8                8.8 +/-    1.69      16.1 +/-    1.69  0.140 / 0.330