PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/21-22:58:00
G01     55.6           28.6                7.7 +/-    1.30      13.8 +/-    1.30  0.120 / 0.280
G06     181.6          15.2               11.4 +/-    4.20      28.3 +/-    4.20  0.150 / 0.210
G07     143.2          13.9               10.7 +/-    1.96      27.4 +/-    1.96  0.100 / 0.160
G11     45.9           19.4                7.7 +/-    1.92      17.1 +/-    1.92  0.080 / 0.160
G13     256.9          34.2               12.3 +/-    1.42      19.8 +/-    1.42  0.040 / 0.040
G15     289.3          16.5                9.0 +/-    1.32      21.6 +/-    1.32  0.040 / 0.050
G17     284.2          79.6                9.0 +/-    0.74       9.1 +/-    0.74  0.090 / 0.070
G19     236.5          54.1               10.2 +/-    2.12      12.3 +/-    2.12  0.100 / 0.060
G28     36.2           57.4                8.8 +/-    0.83      10.2 +/-    0.83  0.040 / 0.050
G30     146.2          47.5               11.0 +/-    0.76      14.3 +/-    0.76  0.040 / 0.040