PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-22:28:00
G10     310.3          56.1                9.7 +/-    1.11      11.5 +/-    1.11  0.030 / 0.040
G14     212.1          16.3               17.0 +/-    6.74      41.0 +/-    6.74  0.040 / 0.040
G15     45.6           22.5                6.8 +/-    0.70      14.0 +/-    0.70  0.120 / 0.260
G20     10.5           64.2                9.7 +/-    0.53      10.6 +/-    0.53  0.090 / 0.260
G21     113.6          70.1               11.9 +/-    1.12      12.6 +/-    1.12  0.060 / 0.090
G24     91.2           29.0                9.4 +/-    0.71      16.9 +/-    0.71  0.060 / 0.080
G27     293.0          36.7               10.8 +/-    1.25      16.6 +/-    1.25  0.070 / 0.160
G32     213.3          38.8               13.0 +/-    0.90      19.3 +/-    0.90  0.070 / 0.130