PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/02-01:57:50
G05     47.7           18.7                6.3 +/-    1.15      14.4 +/-    1.15  0.170 / 0.430
G10     233.9          11.1                1.8 +/-   38.68       4.8 +/-   38.68  0.140 / 0.440
G13     79.3           35.6                9.1 +/-    1.55      14.3 +/-    1.55  0.040 / 0.090
G15     127.3          50.4               11.1 +/-    0.55      13.9 +/-    0.55  0.040 / 0.080
G20     245.3          34.4               12.8 +/-    0.95      20.5 +/-    0.95  0.120 / 0.290
G21     310.7          45.0                9.4 +/-    1.80      12.7 +/-    1.80  0.170 / 0.290
G25     201.2          14.0               10.3 +/-    1.36      26.1 +/-    1.36  0.070 / 0.110
G26     292.5          19.8                9.8 +/-    1.80      21.6 +/-    1.80  0.060 / 0.140
G29     147.5          73.7               10.5 +/-    1.04      10.9 +/-    1.04  0.050 / 0.120