PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-00:12:30
G02     273.1          80.9               13.6 +/-    0.59      13.8 +/-    0.59  0.080 / 0.110
G05     168.4          22.5               18.1 +/-    2.94      37.4 +/-    2.94  0.130 / 0.130
G06     38.9           54.9               13.1 +/-    0.84      15.6 +/-    0.84  0.050 / 0.040
G12     320.3          55.6               12.3 +/-    0.70      14.5 +/-    0.70  0.040 / 0.040
G17     76.1           17.9               13.1 +/-    1.99      30.3 +/-    1.99  0.220 / 0.220
G19     63.3           34.2               14.5 +/-    1.47      23.4 +/-    1.47  0.150 / 0.180
G24     237.5          30.6               16.7 +/-    1.69      28.9 +/-    1.69  0.060 / 0.040
G25     317.2          18.4               10.0 +/-    3.38      22.8 +/-    3.38  0.060 / 0.040