PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-15:43:10
G01     69.5           32.3                9.5 +/-    0.38      15.8 +/-    0.38  0.060 / 0.120
G07     137.2          26.4               11.4 +/-    0.79      21.6 +/-    0.79  0.080 / 0.100
G11     52.9           30.7                7.8 +/-    1.61      13.4 +/-    1.61  0.040 / 0.060
G13     272.8          38.4               12.1 +/-    1.04      18.0 +/-    1.04  0.050 / 0.060
G15     301.8          15.5                6.3 +/-    3.15      15.5 +/-    3.15  0.060 / 0.150
G17     231.6          67.3               12.6 +/-    0.64      13.5 +/-    0.64  0.060 / 0.170
G18     47.7           17.4                7.2 +/-    0.76      17.0 +/-    0.76  0.060 / 0.080
G19     223.6          43.5               11.4 +/-    1.41      15.7 +/-    1.41  0.040 / 0.090
G28     8.8            60.9                8.9 +/-    0.87      10.0 +/-    0.87  0.030 / 0.040
G30     136.0          59.1               11.7 +/-    0.78      13.4 +/-    0.78  0.040 / 0.050