PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/02-06:27:40
G01     37.1           9.8                -0.1 +/-    6.54      -0.3 +/-    6.54  0.100 / 0.140
G02     198.7          15.1                5.5 +/-    2.13      13.8 +/-    2.13  0.110 / 0.180
G06     172.0          45.8                7.3 +/-    0.61       9.7 +/-    0.61  0.040 / 0.050
G13     231.1          18.5                4.6 +/-    3.58      10.4 +/-    3.58  0.050 / 0.060
G17     13.7           65.3                3.8 +/-    0.54       4.1 +/-    0.54  0.030 / 0.030
G19     303.2          72.5                4.4 +/-    0.47       4.6 +/-    0.47  0.030 / 0.030
G24     314.4          22.8                2.3 +/-    1.27       4.7 +/-    1.27  0.030 / 0.020
G28     71.0           50.5                5.3 +/-    1.28       6.6 +/-    1.28  0.030 / 0.020
G30     157.3          25.1                7.1 +/-    1.92      13.8 +/-    1.92  0.270 / 0.260