PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-19:58:30
G10     250.3          28.2               15.6 +/-    1.27      28.5 +/-    1.27  0.040 / 0.060
G13     53.2           28.9               10.2 +/-    1.34      18.3 +/-    1.34  0.040 / 0.050
G15     88.9           58.3               12.7 +/-    0.43      14.7 +/-    0.43  0.110 / 0.190
G16     295.7          15.8                9.8 +/-    2.03      23.9 +/-    2.03  0.130 / 0.160
G20     270.5          51.4               13.5 +/-    3.05      16.7 +/-    3.05  0.040 / 0.040
G21     332.9          59.2               11.9 +/-    1.18      13.6 +/-    1.18  0.030 / 0.040
G26     268.4          15.6               12.0 +/-    2.28      29.4 +/-    2.28  0.150 / 0.490
G29     163.5          51.0               14.3 +/-    0.50      17.8 +/-    0.50  0.120 / 0.440