PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-17:12:40
G02     203.6          33.6                9.9 +/-    1.72      16.2 +/-    1.72  0.080 / 0.090
G06     158.6          69.1                9.2 +/-    0.55       9.8 +/-    0.55  0.050 / 0.110
G12     306.6          14.0                9.5 +/-    2.23      24.3 +/-    2.23  0.080 / 0.110
G17     33.4           51.1                8.4 +/-    1.40      10.5 +/-    1.40  0.080 / 0.100
G19     4.1            64.7                8.6 +/-    0.77       9.4 +/-    0.77  0.120 / 0.090
G24     297.8          37.8               21.7 +/-    2.95      32.8 +/-    2.95  0.130 / 0.080
G28     99.4           36.2                9.2 +/-    1.39      14.3 +/-    1.39  0.060 / 0.050