PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-15:28:10
G02     10.8           69.3                8.3 +/-    1.03       8.8 +/-    1.03  0.160 / 0.280
G05     159.2          45.9               10.8 +/-    1.34      14.4 +/-    1.34  0.120 / 0.300
G06     46.0           27.2                5.3 +/-    1.50       9.9 +/-    1.50  0.120 / 0.190
G12     253.7          80.4                8.1 +/-    0.88       8.2 +/-    0.88  0.110 / 0.200
G19     87.4           17.2                8.5 +/-    1.18      19.9 +/-    1.18  0.040 / 0.040
G24     219.7          13.6                9.7 +/-    1.03      24.9 +/-    1.03  0.050 / 0.040
G25     312.6          40.1                8.0 +/-    0.81      11.7 +/-    0.81  0.030 / 0.020
G29     295.4          16.7                8.2 +/-    1.73      19.5 +/-    1.73  0.020 / 0.020