PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/08-01:12:40
G01     74.9           33.1                5.3 +/-    0.81       8.8 +/-    0.81  0.040 / 0.040
G07     135.1          30.6                7.1 +/-    1.00      12.3 +/-    1.00  0.040 / 0.050
G11     55.0           32.0                3.9 +/-    1.56       6.5 +/-    1.56  0.100 / 0.000
G13     278.5          38.4                7.3 +/-    2.61      10.9 +/-    2.61  0.150 / 0.330
G15     305.7          14.4                2.3 +/-    2.57       5.9 +/-    2.57  0.050 / 0.080
G17     227.2          68.5                6.2 +/-    0.72       6.6 +/-    0.72  0.050 / 0.090
G18     48.7           17.2              -11.0 +/-   10.02     -26.0 +/-   10.02  0.050 / 0.080
G19     221.1          37.7                6.8 +/-    1.92      10.3 +/-    1.92  0.060 / 0.100
G28     6.8            60.9                4.5 +/-    1.17       5.1 +/-    1.17  0.140 / 0.090
G30     131.3          65.9                7.5 +/-    0.65       8.2 +/-    0.65  0.120 / 0.100