PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-05:13:00
G01     44.9           20.9                3.2 +/-    3.59       7.0 +/-    3.59  0.050 / 0.060
G06     175.9          29.2                5.2 +/-    2.18       9.3 +/-    2.18  0.070 / 0.060
G11     44.6           15.5                4.1 +/-    2.51      10.0 +/-    2.51  0.070 / 0.230
G13     244.3          28.7                7.8 +/-    1.86      14.0 +/-    1.86  0.060 / 0.170
G15     276.2          15.3                3.3 +/-    2.70       8.1 +/-    2.70  0.190 / 0.310
G17     339.3          77.0                5.8 +/-    0.75       5.9 +/-    0.75  0.320 / 0.330
G19     255.6          65.8                7.6 +/-    0.91       8.3 +/-    0.91  0.040 / 0.050
G24     318.7          10.3              -17.8 +/-   10.01     -49.2 +/-   10.01  0.040 / 0.050
G28     46.6           56.7                7.0 +/-    0.81       8.2 +/-    0.81  0.040 / 0.030
G30     153.0          41.0                7.4 +/-    1.10      10.6 +/-    1.10  0.040 / 0.040