PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/12-02:43:10
G02     9.3            72.2                8.0 +/-    0.57       8.4 +/-    0.57  0.020 / 0.020
G05     159.0          41.8                9.8 +/-    0.67      13.8 +/-    0.67  0.020 / 0.030
G06     43.8           33.9                6.0 +/-    1.91       9.7 +/-    1.91  0.040 / 0.060
G12     292.7          77.0                8.5 +/-    1.06       8.7 +/-    1.06  0.050 / 0.060
G17     90.5           10.8                6.8 +/-    1.60      18.6 +/-    1.60  0.060 / 0.100
G19     81.4           23.5                6.7 +/-    1.46      13.5 +/-    1.46  0.060 / 0.090
G24     223.2          17.7                8.3 +/-    2.69      19.2 +/-    2.69  0.130 / 0.430
G25     315.7          34.7                6.8 +/-    1.16      10.9 +/-    1.16  0.230 / 0.390
G29     291.5          13.0                9.1 +/-    2.21      23.7 +/-    2.21  0.090 / 0.110