PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/17-03:28:10
G01     82.1           33.1                4.2 +/-    0.58       6.9 +/-    0.58  0.030 / 0.040
G07     131.2          39.5                5.4 +/-    0.64       7.9 +/-    0.64  0.040 / 0.030
G11     63.1           37.5                3.5 +/-    1.69       5.3 +/-    1.69  0.030 / 0.060
G13     287.6          36.9                4.8 +/-    0.85       7.4 +/-    0.85  0.040 / 0.060
G15     309.8          13.3                2.3 +/-    2.30       6.1 +/-    2.30  0.120 / 0.250
G17     220.7          60.1                7.7 +/-    1.84       8.7 +/-    1.84  0.160 / 0.240
G19     218.1          34.2                6.1 +/-    1.33       9.9 +/-    1.33  0.090 / 0.050
G28     3.8            60.9                3.4 +/-    0.53       3.8 +/-    0.53  0.050 / 0.060
G30     123.0          67.3                5.1 +/-    0.89       5.5 +/-    0.89  0.050 / 0.100