PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-21:27:50
G01     112.5          21.9               14.2 +/-    2.03      29.9 +/-    2.03  0.030 / 0.040
G07     101.0          57.8               14.9 +/-    1.15      17.3 +/-    1.15  0.030 / 0.040
G08     42.4           24.0               11.8 +/-    1.94      23.6 +/-    1.94  0.050 / 0.060
G09     176.3          20.0               20.3 +/-    3.23      44.7 +/-    3.23  0.040 / 0.060
G11     95.2           42.3               15.5 +/-    0.60      21.7 +/-    0.60  0.090 / 0.170
G13     313.6          25.3               10.8 +/-    1.29      21.0 +/-    1.29  0.100 / 0.160
G17     202.5          33.1               18.7 +/-    0.95      30.7 +/-    0.95  0.120 / 0.170
G18     83.7           22.5               13.3 +/-    1.91      27.5 +/-    1.91  0.120 / 0.160
G28     299.1          57.7               12.8 +/-    1.20      14.9 +/-    1.20  0.030 / 0.030
G30     3.2            74.6               14.2 +/-    0.81      14.7 +/-    0.81  0.030 / 0.030