PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-20:58:00
G01     319.8          17.0                6.1 +/-    1.18      14.5 +/-    1.18  0.120 / 0.300
G08     261.7          15.3               10.8 +/-    1.75      26.8 +/-    1.75  0.150 / 0.370
G10     75.4           53.3                9.0 +/-    0.71      10.9 +/-    0.71  0.040 / 0.050
G11     308.3          19.1                8.0 +/-    1.31      17.9 +/-    1.31  0.040 / 0.060
G14     276.6          66.9                8.8 +/-    0.61       9.5 +/-    0.61  0.140 / 0.230
G20     103.3          29.6               10.7 +/-    1.90      18.8 +/-    1.90  0.120 / 0.200
G27     226.5          11.5               14.6 +/-    3.61      39.4 +/-    3.61  0.170 / 0.310
G31     176.0          38.4               11.8 +/-    1.30      17.7 +/-    1.30  0.160 / 0.330
G32     2.9            69.6               10.3 +/-    0.41      10.9 +/-    0.41  0.040 / 0.040