PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/29-10:42:50
G02     223.1          67.4                5.5 +/-    0.94       5.9 +/-    0.94  0.070 / 0.080
G06     46.3           67.4                3.5 +/-    0.49       3.8 +/-    0.49  0.070 / 0.090
G12     320.7          44.7                3.2 +/-    1.50       4.3 +/-    1.50  0.040 / 0.040
G17     61.9           28.5                1.9 +/-    0.91       3.5 +/-    0.91  0.040 / 0.040
G19     48.0           43.1                4.7 +/-    0.72       6.5 +/-    0.72  0.080 / 0.310
G24     258.7          39.1                7.1 +/-    0.94      10.4 +/-    0.94  0.080 / 0.280
G28     124.7          15.9                5.4 +/-    1.28      13.2 +/-    1.28  0.040 / 0.060