PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/01-21:42:40
G01     43.8           19.9               10.1 +/-    1.41      22.4 +/-    1.41  0.080 / 0.220
G06     175.6          34.6               14.6 +/-    1.58      23.3 +/-    1.58  0.140 / 0.140
G13     242.1          25.1               12.2 +/-    1.99      23.8 +/-    1.99  0.070 / 0.120
G15     275.4          13.7               11.8 +/-    2.58      30.2 +/-    2.58  0.070 / 0.170
G17     334.4          75.2               11.8 +/-    0.80      12.2 +/-    0.80  0.200 / 0.470
G19     263.2          65.4               10.8 +/-    0.96      11.7 +/-    0.96  0.170 / 0.510
G24     317.8          15.4                9.4 +/-    1.86      23.2 +/-    1.86  0.040 / 0.080
G28     65.7           48.9               11.3 +/-    0.45      14.5 +/-    0.45  0.040 / 0.070
G30     152.8          31.1               15.5 +/-    1.06      26.5 +/-    1.06  0.060 / 0.110