Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 10 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 10/10/2021   04:32:50   (   0.27,-128.01) (  -0.13,-129.72)  195.27                80
 10/11/2021   04:14:50   (   0.25,-128.03) (   0.97,-124.74)  375.36                80
 10/12/2021   16:31:01   (  -0.27,-128.08) (  -0.00,-129.35)  144.47                80
 10/13/2021   16:13:00   (  -0.25,-128.10) (  -1.05,-124.36)  425.93                80
 10/15/2021   04:29:20   (   0.28,-128.14) (   0.11,-129.01)   98.59                80
 10/16/2021   04:11:18   (   0.26,-128.16) (   1.16,-124.02)  471.66                80
 10/17/2021   16:27:30   (  -0.28,-128.20) (  -0.19,-128.63)   48.45                80
 10/20/2021   04:28:29   (   0.29,-128.27) (   0.31,-128.29)    3.69                80
 10/22/2021   16:26:38   (  -0.29,-128.32) (  -0.39,-127.91)   46.73                80