PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-17:42:50
G01     112.2          21.9               12.3 +/-    1.91      25.9 +/-    1.91  0.050 / 0.070
G07     102.3          56.4               13.5 +/-    0.70      15.9 +/-    0.70  0.060 / 0.060
G08     42.7           25.3               11.0 +/-    2.92      21.3 +/-    2.92  0.040 / 0.040
G09     176.6          20.5               10.6 +/-    1.63      23.1 +/-    1.63  0.040 / 0.040
G11     95.7           42.6               14.2 +/-    1.20      19.9 +/-    1.20  0.030 / 0.020
G13     313.4          25.6               11.9 +/-    1.95      22.9 +/-    1.95  0.030 / 0.030
G17     203.0          31.6               12.0 +/-    1.18      20.4 +/-    1.18  0.080 / 0.200
G18     84.8           22.8               12.5 +/-    1.56      25.7 +/-    1.56  0.090 / 0.190
G28     297.6          57.1               11.2 +/-    1.36      13.1 +/-    1.36  0.190 / 0.230
G30     10.9           75.6               12.0 +/-    0.93      12.4 +/-    0.93  0.160 / 0.260