PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/16-02:27:40
G02     9.4            72.1                8.1 +/-    0.65       8.4 +/-    0.65  0.020 / 0.010
G05     158.9          42.0               11.0 +/-    0.59      15.5 +/-    0.59  0.030 / 0.010
G06     43.9           33.6                6.1 +/-    1.85      10.0 +/-    1.85  0.060 / 0.040
G12     291.8          77.3                8.7 +/-    0.84       8.9 +/-    0.84  0.040 / 0.030
G17     90.5           10.9                8.1 +/-    2.94      22.3 +/-    2.94  0.160 / 0.290
G19     81.5           23.5                7.7 +/-    1.54      15.6 +/-    1.54  0.090 / 0.160
G24     223.0          17.6               10.9 +/-    2.51      25.5 +/-    2.51  0.080 / 0.030
G25     315.6          34.8                7.0 +/-    1.18      11.1 +/-    1.18  0.060 / 0.040
G29     291.6          13.0                7.9 +/-    2.41      20.6 +/-    2.41  0.060 / 0.040