PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-21:58:10
G01     45.1           21.2               10.1 +/-    3.07      21.7 +/-    3.07  0.070 / 0.080
G06     176.1          32.4               17.0 +/-    1.33      28.3 +/-    1.33  0.080 / 0.090
G11     43.8           10.6                9.3 +/-    2.57      25.7 +/-    2.57  0.080 / 0.290
G13     244.0          26.4               14.1 +/-    1.67      26.7 +/-    1.67  0.070 / 0.280
G15     277.2          14.3               11.5 +/-    0.98      29.0 +/-    0.98  0.120 / 0.240
G17     325.3          76.1               12.4 +/-    0.44      12.8 +/-    0.44  0.220 / 0.180
G19     258.9          64.2               13.3 +/-    0.73      14.6 +/-    0.73  0.150 / 0.220
G24     318.3          13.7                7.3 +/-   14.13      18.7 +/-   14.13  0.150 / 0.390
G28     62.9           49.8               11.0 +/-    0.68      13.9 +/-    0.68  0.080 / 0.090
G30     152.1          32.9               15.2 +/-    0.96      25.1 +/-    0.96  0.070 / 0.110