PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-23:43:10
G01     50.2           25.6                8.3 +/-    2.52      16.1 +/-    2.52  0.080 / 0.120
G06     180.7          20.6                9.9 +/-    2.03      21.5 +/-    2.03  0.070 / 0.150
G11     44.2           14.4                7.1 +/-    1.90      17.9 +/-    1.90  0.040 / 0.050
G13     250.2          31.2                9.0 +/-    2.11      15.4 +/-    2.11  0.040 / 0.040
G15     283.6          15.8                8.3 +/-    1.20      20.2 +/-    1.20  0.070 / 0.030
G17     321.3          79.1                9.3 +/-    0.58       9.4 +/-    0.58  0.070 / 0.040
G19     244.9          59.2                9.7 +/-    1.26      11.1 +/-    1.26  0.110 / 0.160
G28     46.4           55.4                6.9 +/-    1.11       8.2 +/-    1.11  0.120 / 0.130
G30     149.4          41.6                8.9 +/-    0.99      12.6 +/-    0.99  0.100 / 0.140