PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-23:27:30
G01     50.1           25.4                7.6 +/-    2.11      14.8 +/-    2.11  0.070 / 0.040
G06     180.5          20.9               10.2 +/-    1.94      22.0 +/-    1.94  0.070 / 0.040
G11     44.2           14.3                5.5 +/-    1.63      14.0 +/-    1.63  0.120 / 0.150
G13     250.0          31.1                8.9 +/-    2.33      15.2 +/-    2.33  0.060 / 0.140
G15     283.4          15.8                6.5 +/-    0.88      15.9 +/-    0.88  0.080 / 0.190
G17     321.7          79.0                8.9 +/-    0.36       9.1 +/-    0.36  0.120 / 0.210
G19     245.2          59.4                9.6 +/-    1.03      11.0 +/-    1.03  0.030 / 0.050
G28     46.6           55.3                7.4 +/-    0.88       8.8 +/-    0.88  0.030 / 0.040
G30     149.5          41.3               10.6 +/-    1.89      15.2 +/-    1.89  0.180 / 0.180