PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/23-00:12:50
G01     105.6          26.3               11.7 +/-    0.61      22.1 +/-    0.61  0.040 / 0.080
G07     108.8          57.4               11.6 +/-    0.67      13.5 +/-    0.67  0.050 / 0.060
G08     42.1           21.4                7.7 +/-    1.27      16.4 +/-    1.27  0.070 / 0.140
G09     175.3          13.3               13.7 +/-    1.34      35.6 +/-    1.34  0.070 / 0.140
G11     90.9           43.6               10.0 +/-    0.44      13.8 +/-    0.44  0.070 / 0.140
G13     309.0          28.9                7.9 +/-    1.20      14.1 +/-    1.20  0.070 / 0.150
G17     207.1          37.6               13.1 +/-    0.84      19.9 +/-    0.84  0.030 / 0.060
G19     209.5          14.5                7.9 +/-    2.07      19.9 +/-    2.07  0.040 / 0.050
G28     322.2          61.3                9.8 +/-    0.86      11.0 +/-    0.86  0.100 / 0.190
G30     53.0           78.1               10.7 +/-    0.34      10.9 +/-    0.34  0.110 / 0.190