PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-22:58:00
G01     319.7          17.2               -9.5 +/-   35.72     -22.4 +/-   35.72  0.150 / 0.310
G08     262.5          15.0               11.6 +/-    1.82      28.8 +/-    1.82  0.170 / 0.280
G10     76.2           53.1                9.5 +/-    0.75      11.6 +/-    0.75  0.040 / 0.040
G11     307.2          20.0                6.9 +/-    1.41      15.3 +/-    1.41  0.030 / 0.050
G14     280.2          68.1                9.7 +/-    0.76      10.4 +/-    0.76  0.080 / 0.080
G18     307.4          38.7                8.1 +/-    1.70      12.1 +/-    1.70  0.050 / 0.100
G20     103.5          30.0               11.6 +/-    1.29      20.3 +/-    1.29  0.170 / 0.240
G27     226.2          11.2               14.1 +/-    0.68      38.4 +/-    0.68  0.140 / 0.300
G31     175.4          39.5               11.2 +/-    1.18      16.5 +/-    1.18  0.220 / 0.390
G32     2.7            69.5                8.9 +/-    0.82       9.4 +/-    0.82  0.230 / 0.300