PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-14:28:10
G02     219.6          60.3                9.0 +/-    1.44      10.2 +/-    1.44  0.040 / 0.050
G06     50.8           70.6                8.1 +/-    0.31       8.5 +/-    0.31  0.050 / 0.050
G12     319.0          38.9                5.4 +/-    1.46       8.0 +/-    1.46  0.060 / 0.080
G17     57.8           32.6                5.3 +/-    1.49       8.8 +/-    1.49  0.040 / 0.070
G19     44.2           45.6                7.2 +/-    1.30       9.6 +/-    1.30  0.110 / 0.240
G24     262.5          40.3                7.5 +/-    4.51      10.8 +/-    4.51  0.110 / 0.240
G28     122.8          17.5                8.5 +/-    1.36      19.8 +/-    1.36  0.040 / 0.020