PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-09:57:30
G01     38.6           12.7                1.9 +/-    0.98       4.9 +/-    0.98  0.060 / 0.120
G06     172.5          42.9                6.7 +/-    1.14       9.3 +/-    1.14  0.060 / 0.120
G13     233.7          20.6                5.6 +/-    1.06      12.1 +/-    1.06  0.030 / 0.030
G15     267.5          11.1                3.1 +/-    2.75       8.5 +/-    2.75  0.030 / 0.040
G17     4.7            69.1                6.9 +/-    0.61       7.3 +/-    0.61  0.100 / 0.220
G19     291.0          71.9                6.1 +/-    0.46       6.4 +/-    0.46  0.110 / 0.240
G28     67.6           51.1                5.0 +/-    0.37       6.2 +/-    0.37  0.030 / 0.060
G30     156.1          26.9                6.8 +/-    1.06      12.7 +/-    1.06  0.040 / 0.070