PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-21:43:00
G02     202.5          33.2               14.5 +/-    2.23      23.9 +/-    2.23  0.040 / 0.100
G06     166.3          65.4               13.0 +/-    1.33      14.1 +/-    1.33  0.040 / 0.100
G12     305.3          11.6                8.7 +/-    4.02      23.4 +/-    4.02  0.070 / 0.090
G17     34.5           50.2               10.3 +/-    0.41      12.9 +/-    0.41  0.060 / 0.130
G19     358.0          66.2               10.4 +/-    0.51      11.3 +/-    0.51  0.040 / 0.040
G24     298.9          37.7               11.2 +/-    1.47      17.0 +/-    1.47  0.040 / 0.040
G28     98.1           36.3               11.3 +/-    0.51      17.5 +/-    0.51  0.130 / 0.320