PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-00:57:40
G02     201.3          29.1                9.6 +/-    0.70      17.2 +/-    0.70  0.040 / 0.110
G06     173.4          58.4               11.4 +/-    0.95      13.2 +/-    0.95  0.050 / 0.100
G17     31.8           52.4                7.3 +/-    0.60       9.0 +/-    0.60  0.060 / 0.110
G19     344.9          68.7                7.5 +/-    0.91       8.0 +/-    0.91  0.060 / 0.100
G24     302.4          36.2                9.0 +/-    2.07      13.9 +/-    2.07  0.040 / 0.040
G28     93.9           38.3                8.4 +/-    0.51      12.5 +/-    0.51  0.050 / 0.040