PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-16:28:00
G07     22.0           67.4                8.6 +/-    0.99       9.2 +/-    0.99  0.140 / 0.190
G08     69.6           50.1               11.9 +/-    0.36      15.0 +/-    0.36  0.120 / 0.250
G09     182.0          56.2               10.0 +/-    1.67      11.8 +/-    1.67  0.050 / 0.040
G11     132.8          25.4               11.0 +/-    2.70      21.3 +/-    2.70  0.040 / 0.060
G23     159.3          23.4               10.9 +/-    1.56      22.2 +/-    1.56  0.060 / 0.140
G27     43.3           21.9                8.6 +/-    0.94      18.1 +/-    0.94  0.060 / 0.140
G28     250.6          38.0               13.2 +/-    2.57      19.9 +/-    2.57  0.030 / 0.030
G30     318.0          49.3               11.3 +/-    0.80      14.4 +/-    0.80  0.030 / 0.040