PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-00:28:00
G01     37.6           10.4                7.4 +/-    4.68      20.6 +/-    4.68  0.110 / 0.120
G02     199.3          15.6               11.0 +/-    2.23      27.0 +/-    2.23  0.120 / 0.110
G06     177.1          43.2               10.6 +/-    1.76      14.6 +/-    1.76  0.050 / 0.060
G13     230.8          17.3               10.1 +/-    1.81      23.8 +/-    1.81  0.050 / 0.060
G17     17.4           63.2                8.9 +/-    0.84       9.9 +/-    0.84  0.040 / 0.020
G19     300.4          71.2                8.9 +/-    0.96       9.4 +/-    0.96  0.030 / 0.040
G24     312.4          26.9                8.0 +/-    2.31      14.9 +/-    2.31  0.060 / 0.310
G28     77.8           45.9                9.4 +/-    1.16      12.4 +/-    1.16  0.110 / 0.370
G30     156.1          19.8               10.5 +/-    1.06      23.1 +/-    1.06  0.060 / 0.060