PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-17:43:10
G02     64.0           29.8                9.3 +/-    0.52      16.3 +/-    0.52  0.090 / 0.350
G05     51.0           56.4               11.0 +/-    0.61      12.9 +/-    0.61  0.110 / 0.270
G12     182.4          25.3               13.4 +/-    1.31      25.9 +/-    1.31  0.050 / 0.070
G13     120.8          19.6               14.2 +/-    2.01      31.6 +/-    2.01  0.050 / 0.070
G15     160.9          17.6               14.0 +/-    2.54      32.7 +/-    2.54  0.120 / 0.270
G21     277.2          20.8                9.5 +/-    2.68      20.5 +/-    2.68  0.080 / 0.260
G25     228.6          47.0               12.5 +/-    2.20      16.3 +/-    2.20  0.060 / 0.140
G29     333.3          60.9                9.5 +/-    0.76      10.7 +/-    0.76  0.060 / 0.170