PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-07:27:50
G02     199.1          17.6                4.6 +/-    1.59      10.7 +/-    1.59  0.100 / 0.210
G06     170.8          49.4                7.1 +/-    1.04       9.0 +/-    1.04  0.100 / 0.230
G13     228.8          16.4                5.6 +/-    2.69      13.5 +/-    2.69  0.050 / 0.070
G17     17.1           63.1                5.3 +/-    0.64       5.9 +/-    0.64  0.050 / 0.080
G19     314.6          72.4                4.8 +/-    0.79       5.0 +/-    0.79  0.030 / 0.030
G24     312.9          25.1                1.0 +/-    1.01       1.9 +/-    1.01  0.040 / 0.040
G28     75.5           48.8                3.8 +/-    0.50       4.8 +/-    0.50  0.250 / 0.410
G30     157.7          21.8                5.7 +/-    0.70      11.9 +/-    0.70  0.250 / 0.540