PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/15-00:43:00
G01     106.9          25.7                6.2 +/-    1.96      11.9 +/-    1.96  0.050 / 0.050
G07     106.9          58.3                7.7 +/-    1.24       8.8 +/-    1.24  0.050 / 0.050
G08     42.2           22.1                5.3 +/-    2.89      11.0 +/-    2.89  0.070 / 0.090
G09     175.6          14.4                7.1 +/-    1.18      18.0 +/-    1.18  0.080 / 0.080
G11     92.3           43.4                7.7 +/-    0.89      10.7 +/-    0.89  0.100 / 0.130
G13     310.0          28.0                4.8 +/-    1.15       8.7 +/-    1.15  0.070 / 0.110
G17     206.4          36.7                7.9 +/-    0.81      12.2 +/-    0.81  0.040 / 0.040
G19     209.1          13.5                7.4 +/-    1.19      19.0 +/-    1.19  0.030 / 0.030
G28     319.7          61.2                5.2 +/-    0.70       5.9 +/-    0.70  0.110 / 0.230
G30     49.0           77.9                8.8 +/-    0.72       9.0 +/-    0.72  0.100 / 0.340