PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/30-00:12:50
G02     342.6          78.8                7.0 +/-    0.77       7.2 +/-    0.77  0.140 / 0.300
G05     163.7          33.0               11.9 +/-    0.86      19.6 +/-    0.86  0.130 / 0.270
G06     40.2           43.8                6.4 +/-    0.46       8.8 +/-    0.46  0.090 / 0.130
G12     314.3          67.1                5.3 +/-    0.49       5.7 +/-    0.49  0.100 / 0.150
G17     85.0           11.6                9.5 +/-    2.07      25.7 +/-    2.07  0.030 / 0.040
G19     73.8           27.4                8.0 +/-    0.85      14.8 +/-    0.85  0.030 / 0.040
G24     228.3          23.2               11.3 +/-    3.86      23.1 +/-    3.86  0.030 / 0.040
G25     317.1          28.3                5.9 +/-    1.42      10.7 +/-    1.42  0.030 / 0.040
G29     286.3          11.2                5.8 +/-   15.95      15.8 +/-   15.95  0.030 / 0.050