PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-03:43:10
G01     78.8           31.9                3.2 +/-    1.29       5.3 +/-    1.29  0.030 / 0.030
G07     131.0          39.7                5.9 +/-    0.52       8.6 +/-    0.52  0.030 / 0.030
G11     63.8           40.5                3.8 +/-    0.93       5.5 +/-    0.93  0.070 / 0.320
G13     284.5          39.0                3.4 +/-    3.94       5.0 +/-    3.94  0.120 / 0.350
G15     307.3          14.6               -0.7 +/-    3.00      -1.7 +/-    3.00  0.050 / 0.100
G17     219.0          61.7                7.3 +/-    1.32       8.2 +/-    1.32  0.050 / 0.070
G19     217.0          36.1                6.5 +/-    1.80      10.1 +/-    1.80  0.040 / 0.040
G28     343.4          61.4                4.3 +/-    0.53       4.8 +/-    0.53  0.050 / 0.050
G30     120.5          75.0                5.4 +/-    1.06       5.6 +/-    1.06  0.070 / 0.090