PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-16:27:50
G01     46.2           22.3               10.6 +/-    0.62      22.1 +/-    0.62  0.050 / 0.090
G06     175.3          31.7               14.8 +/-    1.55      25.0 +/-    1.55  0.060 / 0.100
G11     43.6           10.3               10.5 +/-    3.21      29.1 +/-    3.21  0.090 / 0.170
G13     245.1          27.4               14.2 +/-    2.55      26.3 +/-    2.55  0.080 / 0.150
G15     281.2          14.1               12.8 +/-    0.96      32.6 +/-    0.96  0.140 / 0.570
G17     337.1          76.4               14.7 +/-    0.63      15.1 +/-    0.63  0.130 / 0.580
G19     253.4          61.1               13.1 +/-    1.11      14.8 +/-    1.11  0.130 / 0.340
G24     318.3          13.4                9.9 +/-    4.08      25.7 +/-    4.08  0.130 / 0.280
G28     59.9           50.8               13.5 +/-    0.56      16.9 +/-    0.56  0.040 / 0.070
G30     152.2          36.9               14.2 +/-    0.92      21.7 +/-    0.92  0.040 / 0.070