PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-03:12:50
G01     89.1           30.5                8.7 +/-    1.46      15.1 +/-    1.46  0.030 / 0.020
G07     123.5          47.4                9.0 +/-    0.72      11.8 +/-    0.72  0.030 / 0.020
G11     74.4           44.3                6.9 +/-    1.18       9.4 +/-    1.18  0.250 / 0.240
G13     295.2          37.0                9.0 +/-    3.17      13.8 +/-    3.17  0.210 / 0.410
G15     314.0          11.4                1.7 +/-    9.22       4.6 +/-    9.22  0.170 / 0.170
G17     211.6          52.9                9.6 +/-    0.63      11.7 +/-    0.63  0.200 / 0.170
G19     212.5          27.9                7.2 +/-    1.34      13.2 +/-    1.34  0.050 / 0.050
G28     326.4          60.3                5.3 +/-    0.80       6.0 +/-    0.80  0.060 / 0.060
G30     83.1           81.1                7.4 +/-    1.01       7.5 +/-    1.01  0.060 / 0.070