PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-15:12:30
G02     219.2          59.9                9.2 +/-    0.98      10.5 +/-    0.98  0.060 / 0.090
G06     51.6           71.2                9.1 +/-    0.56       9.6 +/-    0.56  0.060 / 0.100
G12     318.8          38.1                8.1 +/-    0.99      12.2 +/-    0.99  0.040 / 0.060
G17     57.1           33.4                6.4 +/-    0.66      10.4 +/-    0.66  0.050 / 0.080
G19     43.6           46.0                7.8 +/-    0.67      10.4 +/-    0.67  0.130 / 0.440
G24     263.0          40.5               11.1 +/-    1.36      16.1 +/-    1.36  0.130 / 0.420
G28     122.5          17.6                7.6 +/-    1.51      17.7 +/-    1.51  0.040 / 0.030