PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-05:13:00
G01     43.7           19.6               15.5 +/-    2.50      34.5 +/-    2.50  0.070 / 0.080
G06     175.5          31.1                8.5 +/-    1.41      14.6 +/-    1.41  0.060 / 0.080
G11     44.3           14.0                4.4 +/-    3.25      11.2 +/-    3.25  0.070 / 0.340
G13     242.5          27.5                9.9 +/-    1.89      18.2 +/-    1.89  0.080 / 0.290
G15     274.4          14.8                3.5 +/-    1.78       8.7 +/-    1.78  0.040 / 0.040
G17     346.0          75.8                7.8 +/-    0.49       8.1 +/-    0.49  0.040 / 0.040
G19     259.9          67.1                9.0 +/-    1.19       9.7 +/-    1.19  0.040 / 0.050
G24     318.5          11.9               -2.3 +/-   22.72      -6.1 +/-   22.72  0.040 / 0.050
G28     49.7           56.1                6.8 +/-    0.78       8.1 +/-    0.78  0.130 / 0.320
G30     153.7          39.1               10.0 +/-    0.72      14.8 +/-    0.72  0.100 / 0.290