PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/02-09:12:30
G02     218.3          61.6                6.8 +/-    1.19       7.6 +/-    1.19  0.030 / 0.070
G06     54.1           73.8                5.6 +/-    0.69       5.8 +/-    0.69  0.060 / 0.080
G12     319.0          37.8                3.8 +/-    1.04       5.7 +/-    1.04  0.050 / 0.090
G17     60.5           28.7                2.7 +/-    0.94       4.9 +/-    0.94  0.050 / 0.070
G19     38.8           49.7                2.9 +/-    0.63       3.6 +/-    0.63  0.160 / 0.410
G24     256.2          41.6                8.0 +/-    0.92      11.3 +/-    0.92  0.170 / 0.430
G28     123.5          13.8                7.4 +/-    2.31      18.8 +/-    2.31  0.050 / 0.100