PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-15:12:50
G01     99.9           28.1                9.0 +/-    1.43      16.5 +/-    1.43  0.030 / 0.060
G07     117.0          48.8                8.9 +/-    0.65      11.4 +/-    0.65  0.030 / 0.050
G08     41.7           16.7                6.6 +/-    0.98      15.7 +/-    0.98  0.040 / 0.060
G11     79.7           43.0                8.4 +/-    0.50      11.6 +/-    0.50  0.040 / 0.060
G13     303.8          33.1                7.3 +/-    3.28      12.0 +/-    3.28  0.040 / 0.080
G17     208.1          42.1               10.5 +/-    0.70      14.8 +/-    0.70  0.040 / 0.090
G18     72.4           24.4                8.2 +/-    0.76      16.3 +/-    0.76  0.080 / 0.140
G19     210.0          19.5               -4.8 +/-    4.34     -10.7 +/-    4.34  0.090 / 0.130
G28     318.3          60.1                8.2 +/-    0.95       9.3 +/-    0.95  0.050 / 0.070
G30     70.6           78.7                8.5 +/-    0.51       8.7 +/-    0.51  0.040 / 0.080