PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-17:28:10
G01     38.2           11.8                6.4 +/-    2.49      17.1 +/-    2.49  0.090 / 0.210
G02     199.7          12.0               11.7 +/-   15.38      31.3 +/-   15.38  0.100 / 0.170
G06     173.4          44.1               13.4 +/-    0.89      18.3 +/-    0.89  0.050 / 0.100
G13     232.3          19.0               12.0 +/-    1.31      27.1 +/-    1.31  0.040 / 0.070
G15     265.8          10.3               10.1 +/-    1.80      27.9 +/-    1.80  0.250 / 0.390
G17     7.0            67.8                9.4 +/-    0.86      10.1 +/-    0.86  0.190 / 0.340
G19     295.9          71.7                9.6 +/-    0.88      10.1 +/-    0.88  0.150 / 0.230
G24     314.4          23.1                6.8 +/-    2.17      13.9 +/-    2.17  0.140 / 0.280
G28     72.8           48.6                8.3 +/-    0.67      10.7 +/-    0.67  0.030 / 0.040
G30     155.0          20.3                9.8 +/-    2.51      21.3 +/-    2.51  0.030 / 0.040