PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/27-15:12:50
G01     37.6           10.5                5.7 +/-    4.16      15.8 +/-    4.16  0.040 / 0.050
G02     200.2          12.3                6.3 +/-    6.28      16.8 +/-    6.28  0.050 / 0.070
G06     172.1          46.3               10.3 +/-    0.89      13.6 +/-    0.89  0.110 / 0.170
G13     231.1          18.1                9.1 +/-    1.64      20.9 +/-    1.64  0.120 / 0.190
G17     5.7            67.8                7.4 +/-    0.67       7.9 +/-    0.67  0.030 / 0.030
G19     302.3          72.1                9.0 +/-    0.88       9.4 +/-    0.88  0.040 / 0.040
G24     314.0          23.8                7.4 +/-    1.03      14.8 +/-    1.03  0.040 / 0.030
G28     74.2           48.3                8.4 +/-    1.68      10.8 +/-    1.68  0.030 / 0.030
G30     155.9          20.5                8.2 +/-    0.97      17.7 +/-    0.97  0.060 / 0.050