PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-17:12:40
G01     40.6           15.8                8.1 +/-    2.69      19.6 +/-    2.69  0.040 / 0.070
G06     174.7          38.3               10.3 +/-    0.99      15.4 +/-    0.99  0.050 / 0.060
G13     236.7          22.7               10.3 +/-    2.11      21.2 +/-    2.11  0.110 / 0.220
G15     270.5          12.3               10.7 +/-    1.80      28.3 +/-    1.80  0.150 / 0.180
G17     356.0          71.9               11.1 +/-    0.71      11.6 +/-    0.71  0.130 / 0.310
G19     277.9          70.0               10.1 +/-    0.90      10.7 +/-    0.90  0.150 / 0.340
G24     316.5          18.8                8.5 +/-    3.29      19.2 +/-    3.29  0.030 / 0.030
G28     65.2           51.1                9.6 +/-    0.96      11.9 +/-    0.96  0.030 / 0.030
G30     153.8          25.5                9.6 +/-    1.64      18.5 +/-    1.64  0.040 / 0.050