PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-19:58:00
G02     243.1          75.8               10.2 +/-    0.46      10.5 +/-    0.46  0.070 / 0.130
G05     171.1          16.7               16.2 +/-    1.71      38.5 +/-    1.71  0.080 / 0.160
G06     40.2           58.6               11.0 +/-    0.36      12.6 +/-    0.36  0.170 / 0.310
G12     320.9          50.1                9.9 +/-    0.86      12.5 +/-    0.86  0.150 / 0.370
G17     70.0           23.3                8.8 +/-    0.90      17.9 +/-    0.90  0.030 / 0.040
G19     57.8           37.4                8.9 +/-    0.43      13.6 +/-    0.43  0.040 / 0.050
G24     244.8          34.4               13.9 +/-    1.48      22.3 +/-    1.48  0.030 / 0.060
G25     316.3          12.0                8.5 +/-    3.99      22.7 +/-    3.99  0.040 / 0.070