PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-12:57:40
G02     219.0          61.4                5.9 +/-    0.96       6.6 +/-    0.96  0.040 / 0.040
G06     51.4           70.9                3.6 +/-    0.50       3.8 +/-    0.50  0.030 / 0.030
G12     319.2          39.4                4.0 +/-    2.63       5.9 +/-    2.63  0.040 / 0.110
G17     58.1           32.0                2.4 +/-    0.80       4.0 +/-    0.80  0.040 / 0.080
G19     43.9           45.8                2.7 +/-    0.98       3.6 +/-    0.98  0.040 / 0.060
G24     263.4          40.3                8.6 +/-    3.02      12.4 +/-    3.02  0.040 / 0.060
G28     122.4          18.2                5.2 +/-    1.71      12.0 +/-    1.71  0.080 / 0.080