PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/23-20:12:50
G01     70.6           32.6               13.0 +/-    1.69      21.5 +/-    1.69  0.070 / 0.120
G07     136.9          25.1               12.6 +/-    0.75      24.6 +/-    0.75  0.060 / 0.140
G11     52.8           30.3               12.4 +/-    1.06      21.6 +/-    1.06  0.030 / 0.030
G13     273.9          38.3               14.6 +/-    1.68      21.8 +/-    1.68  0.030 / 0.030
G15     302.0          15.6               11.2 +/-    1.06      27.6 +/-    1.06  0.040 / 0.040
G17     232.0          69.6               16.4 +/-    0.70      17.4 +/-    0.70  0.040 / 0.050
G18     47.5           17.0               11.4 +/-    2.11      27.1 +/-    2.11  0.130 / 0.170
G19     223.3          42.1               15.2 +/-    1.60      21.4 +/-    1.60  0.110 / 0.230
G28     10.2           60.7               13.3 +/-    1.53      15.0 +/-    1.53  0.090 / 0.110
G30     135.4          60.2               14.3 +/-    0.41      16.2 +/-    0.41  0.070 / 0.090