PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-03:12:40
G01     111.1          21.3                8.4 +/-    1.67      17.8 +/-    1.67  0.030 / 0.030
G07     94.0           63.3                6.0 +/-    0.99       6.6 +/-    0.99  0.030 / 0.030
G08     42.7           25.2                4.1 +/-    2.10       8.0 +/-    2.10  0.040 / 0.040
G09     173.0          16.5                5.6 +/-    1.65      13.5 +/-    1.65  0.040 / 0.040
G11     103.7          43.9                6.9 +/-    0.77       9.4 +/-    0.77  0.120 / 0.110
G13     313.7          25.5                2.7 +/-    2.23       5.2 +/-    2.23  0.090 / 0.130
G17     202.1          31.2                5.6 +/-    1.27       9.6 +/-    1.27  0.040 / 0.070
G28     290.1          54.1                4.4 +/-    1.95       5.3 +/-    1.95  0.050 / 0.080
G30     347.3          71.1                4.1 +/-    0.51       4.3 +/-    0.51  0.080 / 0.080