PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/22-09:12:30
G02     229.2          72.3                5.7 +/-    0.67       6.0 +/-    0.67  0.130 / 0.320
G06     43.2           64.0                3.8 +/-    1.04       4.1 +/-    1.04  0.120 / 0.350
G12     321.6          48.9                4.4 +/-    1.03       5.6 +/-    1.03  0.030 / 0.040
G17     65.4           25.6                4.5 +/-    3.77       8.7 +/-    3.77  0.030 / 0.040
G19     51.9           40.6                3.3 +/-    2.19       4.7 +/-    2.19  0.050 / 0.110
G24     253.9          37.7                5.9 +/-    1.80       8.9 +/-    1.80  0.080 / 0.110
G28     127.0          13.5                6.6 +/-    3.79      17.0 +/-    3.79  0.060 / 0.060