PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-23:28:10
G02     225.8          69.5               12.9 +/-    0.51      13.7 +/-    0.51  0.300 / 0.400
G06     45.0           69.4               11.6 +/-    0.56      12.3 +/-    0.56  0.200 / 0.390
G12     319.7          41.2               10.8 +/-    0.37      15.4 +/-    0.37  0.070 / 0.120
G17     64.4           26.5                9.7 +/-    0.96      18.4 +/-    0.96  0.060 / 0.070
G19     48.8           43.3               11.9 +/-    1.49      16.4 +/-    1.49  0.050 / 0.060
G24     252.9          38.7               13.9 +/-    1.93      20.7 +/-    1.93  0.050 / 0.070
G28     126.8          11.1               15.4 +/-    1.90      42.0 +/-    1.90  0.030 / 0.020