PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-16:12:30
G02     218.4          60.0                7.9 +/-    1.02       9.0 +/-    1.02  0.120 / 0.250
G06     53.0           72.0                8.2 +/-    0.49       8.6 +/-    0.49  0.120 / 0.220
G12     318.5          37.0                8.1 +/-    1.20      12.4 +/-    1.20  0.060 / 0.080
G17     56.1           34.3                8.2 +/-    1.42      13.1 +/-    1.42  0.070 / 0.100
G19     42.8           46.5                8.6 +/-    1.44      11.4 +/-    1.44  0.060 / 0.090
G24     263.5          40.7                8.2 +/-    3.04      11.7 +/-    3.04  0.040 / 0.090
G28     122.1          17.9                6.7 +/-    1.57      15.6 +/-    1.57  0.040 / 0.050