PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-07:12:50
G01     117.4          17.5                4.6 +/-    1.67      10.9 +/-    1.67  0.030 / 0.040
G07     82.4           65.6                5.6 +/-    0.37       6.1 +/-    0.37  0.040 / 0.050
G08     45.5           33.0                2.7 +/-    1.46       4.4 +/-    1.46  0.270 / 0.470
G09     175.7          25.1                6.4 +/-    1.99      12.5 +/-    1.99  0.140 / 0.390
G11     109.4          41.2                6.9 +/-    1.14       9.8 +/-    1.14  0.100 / 0.250
G13     317.2          20.6                2.4 +/-    2.21       5.1 +/-    2.21  0.100 / 0.250
G17     201.3          23.0                5.6 +/-    3.14      11.5 +/-    3.14  0.110 / 0.170
G18     93.6           20.8                4.7 +/-    0.91      10.2 +/-    0.91  0.090 / 0.140
G28     282.0          52.1                7.0 +/-    2.09       8.7 +/-    2.09  0.030 / 0.040
G30     341.1          67.0                4.2 +/-    0.64       4.5 +/-    0.64  0.030 / 0.040