PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-21:43:00
G10     263.3          37.3               12.5 +/-    2.11      19.1 +/-    2.11  0.050 / 0.050
G13     43.4           20.1                8.1 +/-    2.26      17.7 +/-    2.26  0.050 / 0.040
G15     64.1           52.0               10.6 +/-    0.66      13.1 +/-    0.66  0.110 / 0.210
G16     282.6          13.7                8.3 +/-    2.27      21.4 +/-    2.27  0.150 / 0.230
G20     291.4          58.7               10.5 +/-    1.41      12.1 +/-    1.41  0.030 / 0.040
G21     352.9          68.7               10.9 +/-    0.67      11.6 +/-    0.67  0.030 / 0.040
G24     124.8          11.8               11.4 +/-    2.69      30.7 +/-    2.69  0.140 / 0.570
G27     320.5          15.3                7.9 +/-    1.24      19.5 +/-    1.24  0.120 / 0.580
G29     166.6          35.6               11.4 +/-    0.73      17.9 +/-    0.73  0.150 / 0.280