PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-03:43:00
G08     310.3          18.3                4.8 +/-    1.17      10.9 +/-    1.17  0.060 / 0.060
G10     336.9          60.8                4.9 +/-    0.57       5.5 +/-    0.57  0.070 / 0.080
G14     218.2          31.7                7.7 +/-    1.59      13.0 +/-    1.59  0.030 / 0.030
G20     39.4           60.0                5.6 +/-    0.59       6.4 +/-    0.59  0.030 / 0.030
G21     135.4          56.3                7.7 +/-    0.61       9.1 +/-    0.61  0.040 / 0.050
G24     72.9           29.9                5.4 +/-    1.01       9.4 +/-    1.01  0.030 / 0.050
G27     274.6          37.3                5.9 +/-    2.45       9.0 +/-    2.45  0.090 / 0.200
G32     223.6          51.1                8.1 +/-    1.50      10.1 +/-    1.50  0.130 / 0.200