PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-03:12:40
G01     109.3          22.4                7.6 +/-    1.15      15.8 +/-    1.15  0.040 / 0.030
G07     97.6           62.1                7.8 +/-    1.21       8.7 +/-    1.21  0.030 / 0.030
G08     42.3           23.5                4.9 +/-    1.27       9.9 +/-    1.27  0.120 / 0.110
G09     172.7          14.7                5.3 +/-    2.15      13.2 +/-    2.15  0.070 / 0.070
G11     101.1          44.5                8.7 +/-    0.80      11.8 +/-    0.80  0.030 / 0.040
G13     312.5          26.8                4.8 +/-    1.61       9.1 +/-    1.61  0.040 / 0.040
G17     202.7          33.2                7.6 +/-    0.89      12.5 +/-    0.89  0.070 / 0.140
G28     293.1          54.8                4.6 +/-    1.38       5.4 +/-    1.38  0.120 / 0.230
G30     350.7          72.6                5.9 +/-    0.50       6.2 +/-    0.50  0.060 / 0.060