PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-23:27:40
G02     2.2            74.4                9.8 +/-    0.42      10.2 +/-    0.42  0.020 / 0.020
G05     160.4          39.9               15.0 +/-    0.67      21.9 +/-    0.67  0.020 / 0.020
G06     43.5           34.2                9.6 +/-    1.82      15.5 +/-    1.82  0.250 / 0.300
G12     295.6          77.4               11.1 +/-    0.87      11.3 +/-    0.87  0.100 / 0.170
G17     89.8           10.2               11.8 +/-    2.39      32.8 +/-    2.39  0.050 / 0.060
G19     79.4           25.4               11.8 +/-    2.17      22.9 +/-    2.17  0.040 / 0.070
G24     223.8          18.6               18.1 +/-    2.41      41.1 +/-    2.41  0.070 / 0.130
G25     316.1          33.5                8.3 +/-    1.28      13.6 +/-    1.28  0.060 / 0.050
G29     289.9          11.3                1.2 +/-   28.18       3.2 +/-   28.18  0.090 / 0.140