PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-08:12:50
G01     114.8          19.4                5.7 +/-    2.12      12.6 +/-    2.12  0.040 / 0.040
G07     89.9           63.6                5.3 +/-    0.82       5.8 +/-    0.82  0.030 / 0.040
G08     44.5           31.0                3.3 +/-    1.30       5.7 +/-    1.30  0.080 / 0.270
G09     175.6          22.5                6.8 +/-    1.20      14.1 +/-    1.20  0.080 / 0.310
G11     104.9          42.4                6.1 +/-    1.15       8.5 +/-    1.15  0.110 / 0.250
G13     315.7          23.0                2.2 +/-    2.04       4.5 +/-    2.04  0.120 / 0.220
G17     202.2          25.6                4.7 +/-    1.27       9.2 +/-    1.27  0.110 / 0.260
G18     90.4           21.9                4.1 +/-    1.33       8.7 +/-    1.33  0.090 / 0.220
G28     287.0          53.7                6.4 +/-    1.33       7.7 +/-    1.33  0.120 / 0.170
G30     347.0          70.0                4.5 +/-    1.64       4.8 +/-    1.64  0.110 / 0.150