PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/28-09:28:10
G02     218.1          61.3                7.1 +/-    1.10       7.9 +/-    1.10  0.050 / 0.070
G06     54.3           73.7                5.5 +/-    0.86       5.7 +/-    0.86  0.030 / 0.060
G12     319.0          37.8                3.5 +/-    1.31       5.3 +/-    1.31  0.050 / 0.080
G17     60.4           28.8                3.1 +/-    1.38       5.6 +/-    1.38  0.060 / 0.080
G19     38.5           49.9                3.2 +/-    0.54       4.0 +/-    0.54  0.050 / 0.110
G24     256.6          41.7                6.8 +/-    1.46       9.6 +/-    1.46  0.060 / 0.090
G28     123.4          13.8                5.8 +/-    1.95      14.8 +/-    1.95  0.170 / 0.350