PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-21:42:50
G01     52.6           27.0                9.0 +/-    2.46      16.9 +/-    2.46  0.050 / 0.050
G06     180.3          18.9               16.9 +/-    2.25      38.2 +/-    2.25  0.040 / 0.040
G07     144.2          10.4               16.7 +/-    2.87      46.1 +/-    2.87  0.170 / 0.310
G11     45.0           17.0                8.6 +/-    2.08      20.4 +/-    2.08  0.130 / 0.320
G13     253.2          32.7               12.5 +/-    1.29      20.6 +/-    1.29  0.050 / 0.070
G15     286.1          16.3               10.9 +/-    1.31      26.4 +/-    1.31  0.050 / 0.060
G17     300.3          79.7               11.3 +/-    0.61      11.5 +/-    0.61  0.100 / 0.070
G19     240.7          57.2               12.2 +/-    2.68      14.2 +/-    2.68  0.080 / 0.060
G28     40.9           56.6               11.8 +/-    0.73      13.8 +/-    0.73  0.060 / 0.200
G30     147.8          43.7               14.4 +/-    0.60      19.8 +/-    0.60  0.130 / 0.240