PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/27-01:43:00
G02     8.8            72.3               10.6 +/-    0.65      11.0 +/-    0.65  0.020 / 0.040
G05     159.0          42.0               14.8 +/-    0.91      20.8 +/-    0.91  0.020 / 0.030
G06     44.0           33.3                7.3 +/-    0.75      12.0 +/-    0.75  0.030 / 0.060
G12     291.0          77.6                9.9 +/-    0.59      10.1 +/-    0.59  0.030 / 0.060
G17     90.6           10.5                9.5 +/-    1.19      26.3 +/-    1.19  0.160 / 0.410
G19     81.4           23.7               10.6 +/-    1.17      21.4 +/-    1.17  0.110 / 0.450
G24     222.9          17.5               11.6 +/-    5.80      27.1 +/-    5.80  0.040 / 0.050
G25     315.6          34.9               10.4 +/-    1.42      16.6 +/-    1.42  0.040 / 0.040
G29     291.5          12.8               11.5 +/-    1.21      30.0 +/-    1.21  0.070 / 0.130