PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-16:57:40
G01     71.7           32.6                8.2 +/-    0.47      13.6 +/-    0.47  0.060 / 0.130
G07     136.2          27.3               10.0 +/-    1.00      18.5 +/-    1.00  0.060 / 0.150
G11     53.9           31.7                7.8 +/-    0.67      13.2 +/-    0.67  0.050 / 0.070
G13     275.2          38.6               11.0 +/-    0.56      16.4 +/-    0.56  0.040 / 0.060
G15     303.1          15.3                5.7 +/-    4.03      14.2 +/-    4.03  0.060 / 0.150
G17     229.1          66.6                9.4 +/-    1.00      10.1 +/-    1.00  0.060 / 0.150
G18     48.9           18.1                7.0 +/-    0.71      16.0 +/-    0.71  0.040 / 0.080
G19     222.3          41.6               11.8 +/-    1.16      16.7 +/-    1.16  0.050 / 0.080
G28     6.1            61.0                7.5 +/-    0.51       8.4 +/-    0.51  0.030 / 0.050
G30     134.2          59.6               10.0 +/-    0.92      11.4 +/-    0.92  0.030 / 0.050