PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-01:13:00
G02     203.0          36.0               10.4 +/-    1.44      16.2 +/-    1.44  0.080 / 0.090
G06     169.4          66.1                9.2 +/-    0.80      10.0 +/-    0.80  0.080 / 0.080
G12     306.7          13.5                7.8 +/-    2.12      20.1 +/-    2.12  0.050 / 0.130
G17     37.9           47.3                8.0 +/-    1.69      10.5 +/-    1.69  0.070 / 0.090
G19     1.3            65.1                8.0 +/-    0.90       8.8 +/-    0.90  0.030 / 0.030
G24     295.2          39.7                9.3 +/-    8.32      13.5 +/-    8.32  0.040 / 0.030
G28     101.0          34.0                9.5 +/-    0.83      15.3 +/-    0.83  0.200 / 0.240