PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-16:27:50
G01     99.4           28.3               11.6 +/-    1.55      21.1 +/-    1.55  0.030 / 0.060
G07     117.9          47.6               12.2 +/-    0.65      15.8 +/-    0.65  0.040 / 0.060
G08     41.7           15.5                8.0 +/-    1.14      19.7 +/-    1.14  0.070 / 0.130
G11     78.6           42.7               11.0 +/-    1.14      15.3 +/-    1.14  0.070 / 0.120
G13     303.3          33.4               11.6 +/-    3.06      19.0 +/-    3.06  0.040 / 0.070
G17     208.3          43.5               13.7 +/-    0.65      18.9 +/-    0.65  0.050 / 0.060
G18     71.6           24.3                9.8 +/-    0.63      19.4 +/-    0.63  0.050 / 0.080
G19     210.3          19.8               -1.7 +/-   13.79      -3.7 +/-   13.79  0.050 / 0.090
G28     320.2          60.3               10.5 +/-    0.70      11.8 +/-    0.70  0.080 / 0.210
G30     77.4           78.0               12.1 +/-    0.64      12.4 +/-    0.64  0.080 / 0.150