PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-21:42:50
G01     100.0          28.4               11.0 +/-    0.81      20.0 +/-    0.81  0.040 / 0.040
G07     117.7          48.0               11.4 +/-    0.50      14.7 +/-    0.50  0.030 / 0.050
G08     41.5           13.5                8.3 +/-    2.15      21.3 +/-    2.15  0.040 / 0.040
G11     77.9           42.1               11.8 +/-    1.14      16.5 +/-    1.14  0.050 / 0.040
G13     303.6          33.0               10.8 +/-    2.70      17.9 +/-    2.70  0.190 / 0.320
G17     207.7          46.0               13.5 +/-    1.03      18.0 +/-    1.03  0.250 / 0.360
G18     70.2           23.7                9.2 +/-    1.18      18.6 +/-    1.18  0.030 / 0.020
G19     210.6          18.6                6.7 +/-   16.29      15.3 +/-   16.29  0.030 / 0.020
G28     322.8          60.8               10.9 +/-    0.63      12.2 +/-    0.63  0.060 / 0.140
G30     62.5           79.7               12.1 +/-    0.56      12.3 +/-    0.56  0.060 / 0.130