PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-11:12:30
G02     243.2          76.4                5.4 +/-    0.51       5.5 +/-    0.51  0.280 / 0.350
G05     174.7          13.3                3.9 +/-    5.34      10.1 +/-    5.34  0.160 / 0.350
G06     40.5           57.5                5.5 +/-    0.87       6.4 +/-    0.87  0.050 / 0.040
G12     322.0          54.5                5.2 +/-    0.68       6.2 +/-    0.68  0.040 / 0.040
G17     70.0           22.6                3.1 +/-    1.66       6.4 +/-    1.66  0.450 / 0.440
G19     58.0           36.7                4.6 +/-    1.09       7.0 +/-    1.09  0.510 / 0.400
G24     247.1          34.7                6.8 +/-    2.00      10.8 +/-    2.00  0.030 / 0.030
G25     316.1          11.5               -9.8 +/-   27.34     -26.5 +/-   27.34  0.040 / 0.030