PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-07:12:40
G01     74.7           32.3                6.3 +/-    0.54      10.5 +/-    0.54  0.050 / 0.030
G07     133.9          35.0                6.9 +/-    1.06      10.9 +/-    1.06  0.050 / 0.030
G11     58.7           36.9                4.6 +/-    1.20       7.0 +/-    1.20  0.080 / 0.270
G13     279.6          39.1                8.5 +/-    1.28      12.5 +/-    1.28  0.090 / 0.190
G15     305.6          14.7                0.5 +/-    1.43       1.3 +/-    1.43  0.080 / 0.070
G17     223.7          63.9                8.6 +/-    0.70       9.4 +/-    0.70  0.060 / 0.070
G19     219.5          39.6                7.4 +/-    1.53      10.9 +/-    1.53  0.040 / 0.040
G28     353.3          61.5                5.5 +/-    0.91       6.2 +/-    0.91  0.050 / 0.040
G30     129.0          70.1                8.2 +/-    1.00       8.6 +/-    1.00  0.070 / 0.050