PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-23:12:50
G02     232.8          73.1               10.7 +/-    0.56      11.1 +/-    0.56  0.040 / 0.040
G05     172.5          13.3               17.5 +/-    3.92      45.5 +/-    3.92  0.040 / 0.040
G06     41.8           65.1                9.1 +/-    0.58       9.9 +/-    0.58  0.060 / 0.120
G12     320.4          45.0                8.8 +/-    1.18      11.8 +/-    1.18  0.070 / 0.100
G17     67.4           24.3                9.9 +/-    1.09      19.6 +/-    1.09  0.060 / 0.070
G19     52.9           40.7               10.1 +/-    0.91      14.5 +/-    0.91  0.060 / 0.070
G24     248.5          36.8               12.2 +/-    1.38      18.7 +/-    1.38  0.060 / 0.130