PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-04:12:50
G01     255.6          38.7                7.8 +/-    1.74      11.5 +/-    1.74  0.050 / 0.090
G03     316.8          38.4                4.2 +/-    1.06       6.3 +/-    1.06  0.060 / 0.090
G11     242.6          14.3                8.3 +/-    1.80      21.0 +/-    1.80  0.050 / 0.060
G14     52.7           45.4                3.1 +/-    0.39       4.2 +/-    0.39  0.040 / 0.050
G18     224.0          31.4                6.6 +/-    1.49      11.2 +/-    1.49  0.100 / 0.110
G22     310.2          60.0                6.7 +/-    0.94       7.6 +/-    0.94  0.090 / 0.100
G25     45.0           13.3                2.7 +/-    0.95       7.1 +/-    0.95  0.060 / 0.090
G26     140.8          33.5                6.3 +/-    1.02      10.2 +/-    1.02  0.060 / 0.100
G31     44.1           62.3                4.7 +/-    0.62       5.2 +/-    0.62  0.120 / 0.330
G32     72.0           26.7                4.2 +/-    0.65       8.0 +/-    0.65  0.220 / 0.310